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n.F("transport close",t)}))},i.onOpen=function(){this.readyState="open",n.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush()},i.H=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.J("pong"),this.emitReserved("ping"),this.emitReserved("pong"),this.K();break;case"error":var n=new Error("server error");n.code=t.data,this.B(n);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}},i.onHandshake=function(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.I=t.pingInterval,this.R=t.pingTimeout,this.L=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.K()},i.K=function(){var t=this;this.clearTimeoutFn(this.Y);var n=this.I+this.R;this._=Date.now()+n,this.Y=this.setTimeoutFn((function(){t.F("ping timeout")}),n),this.opts.autoUnref&&this.Y.unref()},i.X=function(){this.writeBuffer.splice(0,this.M),this.M=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()},i.flush=function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var t=this.G();this.transport.send(t),this.M=t.length,this.emitReserved("flush")}},i.G=function(){if(!(this.L&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var t,n=1,i=0;i<this.writeBuffer.length;i++){var r=this.writeBuffer[i].data;if(r&&(n+="string"==typeof(t=r)?function(t){for(var n=0,i=0,r=0,e=t.length;r<e;r++)(n=t.charCodeAt(r))<128?i+=1:n<2048?i+=2:n<55296||n>=57344?i+=3:(r++,i+=4);return i}(t):Math.ceil(1.33*(t.byteLength||t.size))),i>0&&n>this.L)return this.writeBuffer.slice(0,i);n+=2}return this.writeBuffer},i.W=function(){var t=this;if(!this._)return!0;var n=Date.now()>this._;return n&&(this._=0,R((function(){t.F("ping timeout")}),this.setTimeoutFn)),n},i.write=function(t,n,i){return this.J("message",t,n,i),this},i.send=function(t,n,i){return this.J("message",t,n,i),this},i.J=function(t,n,i,r){if("function"==typeof n&&(r=n,n=void 0),"function"==typeof i&&(r=i,i=null),"closing"!==this.readyState&&"closed"!==this.readyState){(i=i||{}).compress=!1!==i.compress;var e={type:t,data:n,options:i};this.emitReserved("packetCreate",e),this.writeBuffer.push(e),r&&this.once("flush",r),this.flush()}},i.close=function(){var t=this,n=function(){t.F("forced close"),t.transport.close()},i=function i(){t.off("upgrade",i),t.off("upgradeError",i),n()},r=function(){t.once("upgrade",i),t.once("upgradeError",i)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){t.upgrading?r():n()})):this.upgrading?r():n()),this},i.B=function(t){if(n.priorWebsocketSuccess=!1,this.opts.tryAllTransports&&this.transports.length>1&&"opening"===this.readyState)return this.transports.shift(),this.q();this.emitReserved("error",t),this.F("transport error",t)},i.F=function(t,n){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){if(this.clearTimeoutFn(this.Y),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),ct&&(this.P&&removeEventListener("beforeunload",this.P,!1),this.$)){var i=at.indexOf(this.$);-1!==i&&at.splice(i,1)}this.readyState="closed",this.id=null,this.emitReserved("close",t,n),this.writeBuffer=[],this.M=0}},n}(I);vt.protocol=4;var lt=function(t){function n(){var n;return(n=t.apply(this,arguments)||this).Z=[],n}s(n,t);var i=n.prototype;return i.onOpen=function(){if(t.prototype.onOpen.call(this),"open"===this.readyState&&this.opts.upgrade)for(var n=0;n<this.Z.length;n++)this.tt(this.Z[n])},i.tt=function(t){var n=this,i=this.createTransport(t),r=!1;vt.priorWebsocketSuccess=!1;var e=function(){r||(i.send([{type:"ping",data:"probe"}]),i.once("packet",(function(t){if(!r)if("pong"===t.type&&"probe"===t.data){if(n.upgrading=!0,n.emitReserved("upgrading",i),!i)return;vt.priorWebsocketSuccess="websocket"===i.name,n.transport.pause((function(){r||"closed"!==n.readyState&&(c(),n.setTransport(i),i.send([{type:"upgrade"}]),n.emitReserved("upgrade",i),i=null,n.upgrading=!1,n.flush())}))}else{var e=new Error("probe error");e.transport=i.name,n.emitReserved("upgradeError",e)}})))};function o(){r||(r=!0,c(),i.close(),i=null)}var s=function(t){var r=new Error("probe error: "+t);r.transport=i.name,o(),n.emitReserved("upgradeError",r)};function u(){s("transport closed")}function h(){s("socket closed")}function f(t){i&&t.name!==i.name&&o()}var c=function(){i.removeListener("open",e),i.removeListener("error",s),i.removeListener("close",u),n.off("close",h),n.off("upgrading",f)};i.once("open",e),i.once("error",s),i.once("close",u),this.once("close",h),this.once("upgrading",f),-1!==this.Z.indexOf("webtransport")&&"webtransport"!==t?this.setTimeoutFn((function(){r||i.open()}),200):i.open()},i.onHandshake=function(n){this.Z=this.nt(n.upgrades),t.prototype.onHandshake.call(this,n)},i.nt=function(t){for(var n=[],i=0;i<t.length;i++)~this.transports.indexOf(t[i])&&n.push(t[i]);return n},n}(vt),pt=function(t){function n(n){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r="object"===c(n)?n:i;return(!r.transports||r.transports&&"string"==typeof r.transports[0])&&(r.transports=(r.transports||["polling","websocket","webtransport"]).map((function(t){return st[t]})).filter((function(t){return!!t}))),t.call(this,n,r)||this}return s(n,t),n}(lt);pt.protocol;var dt="function"==typeof ArrayBuffer,yt=function(t){return"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):t.buffer instanceof ArrayBuffer},bt=Object.prototype.toString,wt="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===bt.call(Blob),gt="function"==typeof File||"undefined"!=typeof File&&"[object FileConstructor]"===bt.call(File);function mt(t){return dt&&(t instanceof ArrayBuffer||yt(t))||wt&&t instanceof Blob||gt&&t instanceof File}function kt(t,n){if(!t||"object"!==c(t))return!1;if(Array.isArray(t)){for(var i=0,r=t.length;i<r;i++)if(kt(t[i]))return!0;return!1}if(mt(t))return!0;if(t.toJSON&&"function"==typeof t.toJSON&&1===arguments.length)return kt(t.toJSON(),!0);for(var e in t)if(Object.prototype.hasOwnProperty.call(t,e)&&kt(t[e]))return!0;return!1}function At(t){var n=[],i=t.data,r=t;return r.data=jt(i,n),r.attachments=n.length,{packet:r,buffers:n}}function jt(t,n){if(!t)return t;if(mt(t)){var i={_placeholder:!0,num:n.length};return n.push(t),i}if(Array.isArray(t)){for(var r=new Array(t.length),e=0;e<t.length;e++)r[e]=jt(t[e],n);return r}if("object"===c(t)&&!(t instanceof Date)){var o={};for(var s in t)Object.prototype.hasOwnProperty.call(t,s)&&(o[s]=jt(t[s],n));return o}return t}function Et(t,n){return t.data=Ot(t.data,n),delete t.attachments,t}function Ot(t,n){if(!t)return t;if(t&&!0===t._placeholder){if("number"==typeof t.num&&t.num>=0&&t.num<n.length)return n[t.num];throw new Error("illegal attachments")}if(Array.isArray(t))for(var i=0;i<t.length;i++)t[i]=Ot(t[i],n);else if("object"===c(t))for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(t[r]=Ot(t[r],n));return t}var Bt,St=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"];!function(t){t[t.CONNECT=0]="CONNECT",t[t.DISCONNECT=1]="DISCONNECT",t[t.EVENT=2]="EVENT",t[t.ACK=3]="ACK",t[t.CONNECT_ERROR=4]="CONNECT_ERROR",t[t.BINARY_EVENT=5]="BINARY_EVENT",t[t.BINARY_ACK=6]="BINARY_ACK"}(Bt||(Bt={}));var Nt=function(){function t(t){this.replacer=t}var n=t.prototype;return n.encode=function(t){return t.type!==Bt.EVENT&&t.type!==Bt.ACK||!kt(t)?[this.encodeAsString(t)]:this.encodeAsBinary({type:t.type===Bt.EVENT?Bt.BINARY_EVENT:Bt.BINARY_ACK,nsp:t.nsp,data:t.data,id:t.id})},n.encodeAsString=function(t){var n=""+t.type;return t.type!==Bt.BINARY_EVENT&&t.type!==Bt.BINARY_ACK||(n+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(n+=t.nsp+","),null!=t.id&&(n+=t.id),null!=t.data&&(n+=JSON.stringify(t.data,this.replacer)),n},n.encodeAsBinary=function(t){var n=At(t),i=this.encodeAsString(n.packet),r=n.buffers;return r.unshift(i),r},t}(),Ct=function(t){function n(n){var i;return(i=t.call(this)||this).reviver=n,i}s(n,t);var i=n.prototype;return i.add=function(n){var i;if("string"==typeof n){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");var r=(i=this.decodeString(n)).type===Bt.BINARY_EVENT;r||i.type===Bt.BINARY_ACK?(i.type=r?Bt.EVENT:Bt.ACK,this.reconstructor=new Tt(i),0===i.attachments&&t.prototype.emitReserved.call(this,"decoded",i)):t.prototype.emitReserved.call(this,"decoded",i)}else{if(!mt(n)&&!n.base64)throw new Error("Unknown type: "+n);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");(i=this.reconstructor.takeBinaryData(n))&&(this.reconstructor=null,t.prototype.emitReserved.call(this,"decoded",i))}},i.decodeString=function(t){var i=0,r={type:Number(t.charAt(0))};if(void 0===Bt[r.type])throw new Error("unknown packet type "+r.type);if(r.type===Bt.BINARY_EVENT||r.type===Bt.BINARY_ACK){for(var e=i+1;"-"!==t.charAt(++i)&&i!=t.length;);var o=t.substring(e,i);if(o!=Number(o)||"-"!==t.charAt(i))throw new Error("Illegal attachments");r.attachments=Number(o)}if("/"===t.charAt(i+1)){for(var s=i+1;++i;){if(","===t.charAt(i))break;if(i===t.length)break}r.nsp=t.substring(s,i)}else r.nsp="/";var u=t.charAt(i+1);if(""!==u&&Number(u)==u){for(var h=i+1;++i;){var f=t.charAt(i);if(null==f||Number(f)!=f){--i;break}if(i===t.length)break}r.id=Number(t.substring(h,i+1))}if(t.charAt(++i)){var c=this.tryParse(t.substr(i));if(!n.isPayloadValid(r.type,c))throw new Error("invalid payload");r.data=c}return r},i.tryParse=function(t){try{return JSON.parse(t,this.reviver)}catch(t){return!1}},n.isPayloadValid=function(t,n){switch(t){case Bt.CONNECT:return Mt(n);case Bt.DISCONNECT:return void 0===n;case Bt.CONNECT_ERROR:return"string"==typeof n||Mt(n);case Bt.EVENT:case Bt.BINARY_EVENT:return Array.isArray(n)&&("number"==typeof n[0]||"string"==typeof n[0]&&-1===St.indexOf(n[0]));case Bt.ACK:case Bt.BINARY_ACK:return Array.isArray(n)}},i.destroy=function(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)},n}(I),Tt=function(){function t(t){this.packet=t,this.buffers=[],this.reconPack=t}var n=t.prototype;return n.takeBinaryData=function(t){if(this.buffers.push(t),this.buffers.length===this.reconPack.attachments){var n=Et(this.reconPack,this.buffers);return this.finishedReconstruction(),n}return null},n.finishedReconstruction=function(){this.reconPack=null,this.buffers=[]},t}();var Ut=Number.isInteger||function(t){return"number"==typeof t&&isFinite(t)&&Math.floor(t)===t};function Mt(t){return"[object Object]"===Object.prototype.toString.call(t)}var xt=Object.freeze({__proto__:null,protocol:5,get PacketType(){return Bt},Encoder:Nt,Decoder:Ct,isPacketValid:function(t){return"string"==typeof t.nsp&&(void 0===(n=t.id)||Ut(n))&&function(t,n){switch(t){case Bt.CONNECT:return void 0===n||Mt(n);case Bt.DISCONNECT:return void 0===n;case Bt.EVENT:return Array.isArray(n)&&("number"==typeof n[0]||"string"==typeof n[0]&&-1===St.indexOf(n[0]));case Bt.ACK:return Array.isArray(n);case Bt.CONNECT_ERROR:return"string"==typeof n||Mt(n);default:return!1}}(t.type,t.data);var n}});function It(t,n,i){return t.on(n,i),function(){t.off(n,i)}}var Rt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),Lt=function(t){function n(n,i,r){var o;return(o=t.call(this)||this).connected=!1,o.recovered=!1,o.receiveBuffer=[],o.sendBuffer=[],o.it=[],o.rt=0,o.ids=0,o.acks={},o.flags={},o.io=n,o.nsp=i,r&&r.auth&&(o.auth=r.auth),o.l=e({},r),o.io.et&&o.open(),o}s(n,t);var o=n.prototype;return o.subEvents=function(){if(!this.subs){var t=this.io;this.subs=[It(t,"open",this.onopen.bind(this)),It(t,"packet",this.onpacket.bind(this)),It(t,"error",this.onerror.bind(this)),It(t,"close",this.onclose.bind(this))]}},o.connect=function(){return this.connected||(this.subEvents(),this.io.ot||this.io.open(),"open"===this.io.st&&this.onopen()),this},o.open=function(){return this.connect()},o.send=function(){for(var t=arguments.length,n=new Array(t),i=0;i<t;i++)n[i]=arguments[i];return n.unshift("message"),this.emit.apply(this,n),this},o.emit=function(t){var n,i,r;if(Rt.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');for(var e=arguments.length,o=new Array(e>1?e-1:0),s=1;s<e;s++)o[s-1]=arguments[s];if(o.unshift(t),this.l.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this.ut(o),this;var u={type:Bt.EVENT,data:o,options:{}};if(u.options.compress=!1!==this.flags.compress,"function"==typeof o[o.length-1]){var h=this.ids++,f=o.pop();this.ht(h,f),u.id=h}var c=null===(i=null===(n=this.io.engine)||void 0===n?void 0:n.transport)||void 0===i?void 0:i.writable,a=this.connected&&!(null===(r=this.io.engine)||void 0===r?void 0:r.W());return this.flags.volatile&&!c||(a?(this.notifyOutgoingListeners(u),this.packet(u)):this.sendBuffer.push(u)),this.flags={},this},o.ht=function(t,n){var i,r=this,e=null!==(i=this.flags.timeout)&&void 0!==i?i:this.l.ackTimeout;if(void 0!==e){var o=this.io.setTimeoutFn((function(){delete r.acks[t];for(var i=0;i<r.sendBuffer.length;i++)r.sendBuffer[i].id===t&&r.sendBuffer.splice(i,1);n.call(r,new Error("operation has timed out"))}),e),s=function(){r.io.clearTimeoutFn(o);for(var t=arguments.length,i=new Array(t),e=0;e<t;e++)i[e]=arguments[e];n.apply(r,i)};s.withError=!0,this.acks[t]=s}else this.acks[t]=n},o.emitWithAck=function(t){for(var n=this,i=arguments.length,r=new Array(i>1?i-1:0),e=1;e<i;e++)r[e-1]=arguments[e];return new Promise((function(i,e){var o=function(t,n){return t?e(t):i(n)};o.withError=!0,r.push(o),n.emit.apply(n,[t].concat(r))}))},o.ut=function(t){var n,i=this;"function"==typeof t[t.length-1]&&(n=t.pop());var r={id:this.rt++,tryCount:0,pending:!1,args:t,flags:e({fromQueue:!0},this.flags)};t.push((function(t){if(

124r===i.it[0]){if(null!==t)r.tryCount>i.l.retries&&(i.it.shift(),n&&n(t));else if(i.it.shift(),n){for(var e=arguments.length,o=new Array(e>1?e-1:0),s=1;s<e;s++)o[s-1]=arguments[s];n.apply(void 0,[null].concat(o))}return r.pending=!1,i.ft()}})),this.it.push(r),this.ft()},o.ft=function(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(this.connected&&0!==this.it.length){var n=this.it[0];n.pending&&!t||(n.pending=!0,n.tryCount++,this.flags=n.flags,this.emit.apply(this,n.args))}},o.packet=function(t){t.nsp=this.nsp,this.io.ct(t)},o.onopen=function(){var t=this;"function"==typeof this.auth?this.auth((function(n){t.vt(n)})):this.vt(this.auth)},o.vt=function(t){this.packet({type:Bt.CONNECT,data:this.lt?e({pid:this.lt,offset:this.dt},t):t})},o.onerror=function(t){this.connected||this.emitReserved("connect_error",t)},o.onclose=function(t,n){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,n),this.yt()},o.yt=function(){var t=this;Object.keys(this.acks).forEach((function(n){if(!t.sendBuffer.some((function(t){return String(t.id)===n}))){var i=t.acks[n];delete t.acks[n],i.withError&&i.call(t,new Error("socket has been disconnected"))}}))},o.onpacket=function(t){if(t.nsp===this.nsp)switch(t.type){case Bt.CONNECT:t.data&&t.data.sid?this.onconnect(t.data.sid,t.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case Bt.EVENT:case Bt.BINARY_EVENT:this.onevent(t);break;case Bt.ACK:case Bt.BINARY_ACK:this.onack(t);break;case Bt.DISCONNECT:this.ondisconnect();break;case Bt.CONNECT_ERROR:this.destroy();var n=new Error(t.data.message);n.data=t.data.data,this.emitReserved("connect_error",n)}},o.onevent=function(t){var n=t.data||[];null!=t.id&&n.push(this.ack(t.id)),this.connected?this.emitEvent(n):this.receiveBuffer.push(Object.freeze(n))},o.emitEvent=function(n){if(this.bt&&this.bt.length){var i,e=r(this.bt.slice());try{for(e.s();!(i=e.n()).done;){i.value.apply(this,n)}}catch(t){e.e(t)}finally{e.f()}}t.prototype.emit.apply(this,n),this.lt&&n.length&&"string"==typeof n[n.length-1]&&(this.dt=n[n.length-1])},o.ack=function(t){var n=this,i=!1;return function(){if(!i){i=!0;for(var r=arguments.length,e=new Array(r),o=0;o<r;o++)e[o]=arguments[o];n.packet({type:Bt.ACK,id:t,data:e})}}},o.onack=function(t){var n=this.acks[t.id];"function"==typeof n&&(delete this.acks[t.id],n.withError&&t.data.unshift(null),n.apply(this,t.data))},o.onconnect=function(t,n){this.id=t,this.recovered=n&&this.lt===n,this.lt=n,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this.ft(!0)},o.emitBuffered=function(){var t=this;this.receiveBuffer.forEach((function(n){return t.emitEvent(n)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(n){t.notifyOutgoingListeners(n),t.packet(n)})),this.sendBuffer=[]},o.ondisconnect=function(){this.destroy(),this.onclose("io server disconnect")},o.destroy=function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io.wt(this)},o.disconnect=function(){return this.connected&&this.packet({type:Bt.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},o.close=function(){return this.disconnect()},o.compress=function(t){return this.flags.compress=t,this},o.timeout=function(t){return this.flags.timeout=t,this},o.onAny=function(t){return this.bt=this.bt||[],this.bt.push(t),this},o.prependAny=function(t){return this.bt=this.bt||[],this.bt.unshift(t),this},o.offAny=function(t){if(!this.bt)return this;if(t){for(var n=this.bt,i=0;i<n.length;i++)if(t===n[i])return n.splice(i,1),this}else this.bt=[];return this},o.listenersAny=function(){return this.bt||[]},o.onAnyOutgoing=function(t){return this.gt=this.gt||[],this.gt.push(t),this},o.prependAnyOutgoing=function(t){return this.gt=this.gt||[],this.gt.unshift(t),this},o.offAnyOutgoing=function(t){if(!this.gt)return this;if(t){for(var n=this.gt,i=0;i<n.length;i++)if(t===n[i])return n.splice(i,1),this}else this.gt=[];return this},o.listenersAnyOutgoing=function(){return this.gt||[]},o.notifyOutgoingListeners=function(t){if(this.gt&&this.gt.length){var n,i=r(this.gt.slice());try{for(i.s();!(n=i.n()).done;){n.value.apply(this,t.data)}}catch(t){i.e(t)}finally{i.f()}}},i(n,[{key:"disconnected",get:function(){return!this.connected}},{key:"active",get:function(){return!!this.subs}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}}])}(I);function _t(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}_t.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var n=Math.random(),i=Math.floor(n*this.jitter*t);t=1&Math.floor(10*n)?t+i:t-i}return 0|Math.min(t,this.max)},_t.prototype.reset=function(){this.attempts=0},_t.prototype.setMin=function(t){this.ms=t},_t.prototype.setMax=function(t){this.max=t},_t.prototype.setJitter=function(t){this.jitter=t};var Dt=function(t){function n(n,i){var r,e;(r=t.call(this)||this).nsps={},r.subs=[],n&&"object"===c(n)&&(i=n,n=void 0),(i=i||{}).path=i.path||"/socket.io",r.opts=i,$(r,i),r.reconnection(!1!==i.reconnection),r.reconnectionAttempts(i.reconnectionAttempts||1/0),r.reconnectionDelay(i.reconnectionDelay||1e3),r.reconnectionDelayMax(i.reconnectionDelayMax||5e3),r.randomizationFactor(null!==(e=i.randomizationFactor)&&void 0!==e?e:.5),r.backoff=new _t({min:r.reconnectionDelay(),max:r.reconnectionDelayMax(),jitter:r.randomizationFactor()}),r.timeout(null==i.timeout?2e4:i.timeout),r.st="closed",r.uri=n;var o=i.parser||xt;return r.encoder=new o.Encoder,r.decoder=new o.Decoder,r.et=!1!==i.autoConnect,r.et&&r.open(),r}s(n,t);var i=n.prototype;return i.reconnection=function(t){return arguments.length?(this.kt=!!t,t||(this.skipReconnect=!0),this):this.kt},i.reconnectionAttempts=function(t){return void 0===t?this.At:(this.At=t,this)},i.reconnectionDelay=function(t){var n;return void 0===t?this.jt:(this.jt=t,null===(n=this.backoff)||void 0===n||n.setMin(t),this)},i.randomizationFactor=function(t){var n;return void 0===t?this.Et:(this.Et=t,null===(n=this.backoff)||void 0===n||n.setJitter(t),this)},i.reconnectionDelayMax=function(t){var n;return void 0===t?this.Ot:(this.Ot=t,null===(n=this.backoff)||void 0===n||n.setMax(t),this)},i.timeout=function(t){return arguments.length?(this.Bt=t,this):this.Bt},i.maybeReconnectOnOpen=function(){!this.ot&&this.kt&&0===this.backoff.attempts&&this.reconnect()},i.open=function(t){var n=this;if(~this.st.indexOf("open"))return this;this.engine=new pt(this.uri,this.opts);var i=this.engine,r=this;this.st="opening",this.skipReconnect=!1;var e=It(i,"open",(function(){r.onopen(),t&&t()})),o=function(i){n.cleanup(),n.st="closed",n.emitReserved("error",i),t?t(i):n.maybeReconnectOnOpen()},s=It(i,"error",o);if(!1!==this.Bt){var u=this.Bt,h=this.setTimeoutFn((function(){e(),o(new Error("timeout")),i.close()}),u);this.opts.autoUnref&&h.unref(),this.subs.push((function(){n.clearTimeoutFn(h)}))}return this.subs.push(e),this.subs.push(s),this},i.connect=function(t){return this.open(t)},i.onopen=function(){this.cleanup(),this.st="open",this.emitReserved("open");var t=this.engine;this.subs.push(It(t,"ping",this.onping.bind(this)),It(t,"data",this.ondata.bind(this)),It(t,"error",this.onerror.bind(this)),It(t,"close",this.onclose.bind(this)),It(this.decoder,"decoded",this.ondecoded.bind(this)))},i.onping=function(){this.emitReserved("ping")},i.ondata=function(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error",t)}},i.ondecoded=function(t){var n=this;R((function(){n.emitReserved("packet",t)}),this.setTimeoutFn)},i.onerror=function(t){this.emitReserved("error",t)},i.socket=function(t,n){var i=this.nsps[t];return i?this.et&&!i.active&&i.connect():(i=new Lt(this,t,n),this.nsps[t]=i),i},i.wt=function(t){for(var n=0,i=Object.keys(this.nsps);n<i.length;n++){var r=i[n];if(this.nsps[r].active)return}this.St()},i.ct=function(t){for(var n=this.encoder.encode(t),i=0;i<n.length;i++)this.engine.write(n[i],t.options)}

275ict mode should be common
276// enough that all such attempts are guarded in a try block.
277"use strict";
278
279var arr = [];
280
281var getProto = Object.getPrototypeOf;
282
283var slice = arr.slice;
284
285var flat = arr.flat ? function( array ) {
286	return arr.flat.call( array );
287} : function( array ) {
288	return arr.concat.apply( [], array );
289};
290
291
292var push = arr.push;
293
294var indexOf = arr.indexOf;
295
296var class2type = {};
297
298var toString = class2type.toString;
299
300var hasOwn = class2type.hasOwnProperty;
301
302var fnToString = hasOwn.toString;
303
304var ObjectFunctionString = fnToString.call( Object );
305
306var support = {};
307
308var isFunction = function isFunction( obj ) {
309
310		// Support: Chrome <=57, Firefox <=52
311		// In some browsers, typeof returns "function" for HTML <object> elements
312		// (i.e., `typeof document.createElement( "object" ) === "function"`).
313		// We don't want to classify *any* DOM node as a function.
314		// Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5
315		// Plus for old WebKit, typeof returns "function" for HTML collections
316		// (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756)
317		return typeof obj === "function" && typeof obj.nodeType !== "number" &&
318			typeof obj.item !== "function";
319	};
320
321
322var isWindow = function isWindow( obj ) {
323		return obj != null && obj === obj.window;
324	};
325
326
327var document = window.document;
328
329
330
331	var preservedScriptAttributes = {
332		type: true,
333		src: true,
334		nonce: true,
335		noModule: true
336	};
337
338	function DOMEval( code, node, doc ) {
339		doc = doc || document;
340
341		var i, val,
342			script = doc.createElement( "script" );
343
344		script.text = code;
345		if ( node ) {
346			for ( i in preservedScriptAttributes ) {
347
348				// Support: Firefox 64+, Edge 18+
349				// Some browsers don't support the "nonce" property on scripts.
350				// On the other hand, just using `getAttribute` is not enough as
351				// the `nonce` attribute is reset to an empty string whenever it
352				// becomes browsing-context connected.
353				// See https://github.com/whatwg/html/issues/2369
354				// See https://html.spec.whatwg.org/#nonce-attributes
355				// The `node.getAttribute` check was added for the sake of
356				// `jQuery.globalEval` so that it can fake a nonce-containing node
357				// via an object.
358				val = node[ i ] || node.getAttribute && node.getAttribute( i );
359				if ( val ) {
360					script.setAttribute( i, val );
361				}
362			}
363		}
364		doc.head.appendChild( script ).parentNode.removeChild( script );
365	}
366
367
368function toType( obj ) {
369	if ( obj == null ) {
370		return obj + "";
371	}
372
373	// Support: Android <=2.3 only (functionish RegExp)
374	return typeof obj === "object" || typeof obj === "function" ?
375		class2type[ toString.call( obj ) ] || "object" :
376		typeof obj;
377}
378/* global Symbol */
379// Defining this global in .eslintrc.json would create a danger of using the global
380// unguarded in another place, it seems safer to define global only for this module
381
382
383
384var
385	version = "3.6.0

385",
386
387	// Define a local copy of jQuery
388	jQuery = function( selector, context ) {
389
390		// The jQuery object is actually just the init constructor 'enhanced'
391		// Need init if jQuery is called (just allow error to be thrown if not included)
392		return new jQuery.fn.init( selector, context );
393	};
394
395jQuery.fn = jQuery.prototype = {
396
397	// The current version of jQuery being used
398	jquery: version,
399
400	constructor: jQuery,
401
402	// The default length of a jQuery object is 0
403	length: 0,
404
405	toArray: function() {
406		return slice.call( this );
407	},
408
409	// Get the Nth element in the matched element set OR
410	// Get the whole matched element set as a clean array
411	get: function( num ) {
412
413		// Return all the elements in a clean array
414		if ( num == null ) {
415			return slice.call( this );
416		}
417
418		// Return just the one element from the set
419		return num < 0 ? this[ num + this.length ] : this[ num ];
420	},
421
422	// Take an array of elements and push it onto the stack
423	// (returning the new matched element set)
424	pushStack: function( elems ) {
425
426		// Build a new jQuery matched element set
427		var ret = jQuery.merge( this.constructor(), elems );
428
429		// Add the old object onto the stack (as a reference)
430		ret.prevObject = this;
431
432		// Return the newly-formed element set
433		return ret;
434	},
435
436	// Execute a callback for every element in the matched set.
437	each: function( callback ) {
438		return jQuery.each( this, callback );
439	},
440
441	map: function( callback ) {
442		return this.pushStack( jQuery.map( this, function( elem, i ) {
443			return callback.call( elem, i, elem );
444		} ) );
445	},
446
447	slice: function() {
448		return this.pushStack( slice.apply( this, arguments ) );
449	},
450
451	first: function() {
452		return this.eq( 0 );
453	},
454
455	last: function() {
456		return this.eq( -1 );
457	},
458
459	even: function() {
460		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
461			return ( i + 1 ) % 2;
462		} ) );
463	},
464
465	odd: function() {
466		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
467			return i % 2;
468		} ) );
469	},
470
471	eq: function( i ) {
472		var len = this.length,
473			j = +i + ( i < 0 ? len : 0 );
474		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
475	},
476
477	end: function() {
478		return this.prevObject || this.constructor();
479	},
480
481	// For internal use only.
482	// Behaves like an Array's method, not like a jQuery method.
483	push: push,
484	sort: arr.sort,
485	splice: arr.splice
486};
487
488jQuery.extend = jQuery.fn.extend = function() {
489	var options, name, src, copy, copyIsArray, clone,
490		target = arguments[ 0 ] || {},
491		i = 1,
492		length = arguments.length,
493		deep = false;
494
495	// Handle a deep copy situation
496	if ( typeof target === "boolean" ) {
497		deep = target;
498
499		// Skip the boolean and the target
500		target = arguments[ i ] || {};
501		i++;
502	}
503
504	// Handle case when target is a string or something (possible in deep copy)
505	if ( typeof target !== "object" && !isFunction( target ) ) {
506		target = {};
507	}
508
509	// Extend jQuery itself if only one argument is passed
510	if ( i === length ) {
511		target = this;
512		i--;
513	}
514
515	for ( ; i < length; i++ ) {
516
517		// Only deal with non-null/undefined values
518		if ( ( options = arguments[ i ] ) != null ) {
519
520			// Extend the base object
521			for ( name in options ) {
522				copy = options[ name ];
523
524				// Prevent Object.prototype pollution
525				// Prevent never-ending loop
526				if ( name === "__proto__" || target === copy ) {
527					continue;
528				}
529
530				// Recurse if we're merging plain objects or arrays
531				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
532					( copyIsArray = Array.isArray( copy ) ) ) ) {
533					src = target[ name ];
534
535					// Ensure proper type for the source value
536					if ( copyIsArray && !Array.isArray( src ) ) {
537						clone = [];
538					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
539						clone = {};
540					} else {
541						clone = src;
542					}
543					copyIsArray = false;
544
545					// Never move original objects, clone them
546					target[ name ] = jQuery.extend( deep, clone, copy );
547
548				// Don't bring in undefined values
549				} else if ( copy !== undefined ) {
550					target[ name ] = copy;
551				}
552			}
553		}
554	}
555
556	// Return the modified object
557	return target;
558};
559
560jQuery.extend( {
561
562	// Unique for each copy of jQuery on the page
563	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
564
565	// Assume jQuery is ready without the ready module
566	isReady: true,
567
568	error: function( msg ) {
569		throw new Error( msg );
570	},
571
572	noop: function() {},
573
574	isPlainObject: function( obj ) {
575		var proto, Ctor;
576
577		// Detect obvious negatives
578		// Use toString instead of jQuery.type to catch host objects
579		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
580			return false;
581		}
582
583		proto = getProto( obj );
584
585		// Objects with no prototype (e.g., `Object.create( null )`) are plain
586		if ( !proto ) {
587			return true;
588		}
589
590		// Objects with prototype are plain iff they were constructed by a global Object function
591		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
592		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
593	},
594
595	isEmptyObject: function( obj ) {
596		var name;
597
598		for ( name in obj ) {
599			return false;
600		}
601		return true;
602	},
603
604	// Evaluates a script in a provided context; falls back to the global one
605	// if not specified.
606	globalEval: function( code, options, doc ) {
607		DOMEval( code, { nonce: options && options.nonce }, doc );
608	},
609
610	each: function( obj, callback ) {
611		var length, i = 0;
612
613		if ( isArrayLike( obj ) ) {
614			length = obj.length;
615			for ( ; i < length; i++ ) {
616				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
617					break;
618				}
619			}
620		} else {
621			for ( i in obj ) {
622				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
623					break;
624				}
625			}
626		}
627
628		return obj;
629	},
630
631	// results is for internal usage only
632	makeArray: function( arr, results ) {
633		var ret = results || [];
634
635		if ( arr != null ) {
636			if ( isArrayLike( Object( arr ) ) ) {
637				jQuery.merge( ret,
638					typeof arr === "string" ?
639						[ arr ] : arr
640				);
641			} else {
642				push.call( ret, arr );
643			}
644		}
645
646		return ret;
647	},
648
649	inArray: function( elem, arr, i ) {
650		return arr == null ? -1 : indexOf.call( arr, elem, i );
651	},
652
653	// Support: Android <=4.0 only, PhantomJS 1 only
654	// push.apply(_, arraylike) throws on ancient WebKit
655	merge: function( first, second ) {
656		var len = +second.length,
657			j = 0,
658			i = first.length;
659
660		for ( ; j < len; j++ ) {
661			first[ i++ ] = second[ j ];
662		}
663
664		first.length = i;
665
666		return first;
667	},
668
669	grep: function( elems, callback, invert ) {
670		var callbackInverse,
671			matches = [],
672			i = 0,
673			length = elems.length,
674			callbackExpect = !invert;
675
676		// Go through the array, only saving the items
677		// that pass the validator function
678		for ( ; i < length; i++ ) {
679			callbackInverse = !callback( elems[ i ], i );
680			if ( callbackInverse !== callbackExpect ) {
681				matches.push( elems[ i ] );
682			}
683		}
684
685		return matches;
686	},
687
688	// arg is for internal usage only
689	map: function( elems, callback, arg ) {
690		var length, value,
691			i = 0,
692			ret = [];
693
694		// Go through the array, translating each of the items to their new values
695		if ( isArrayLike( elems ) ) {
696			length = elems.length;
697			for ( ; i < length; i++ ) {
698				value = callback( elems[ i ], i, arg );
699
700				if ( value != null ) {
701					ret.push( value );
702				}
703			}
704
705		// Go through every key on the object,
706		} else {
707			for ( i in elems ) {
708				value = callback( elems[ i ], i, arg );
709
710				if ( value != null ) {
711					ret.push( value );
712				}
713			}
714		}
715
716		// Flatten any nested arrays
717		return flat( ret );
718	},
719
720	// A global GUID counter for objects
721	guid: 1,
722
723	// jQuery.support is not used in Core but other projects attach their
724	// properties to it so it needs to exist.
725	support: support
726} );
727
728if ( typeof Symbol === "function" ) {
729	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
730}
731
732// Populate the class2type map
733jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
734	function( _i, name ) {
735		class2type[ "[object " + name + "]" ] = name.toLowerCase();
736	} );
737
738function isArrayLike( obj ) {
739
740	// Support: real iOS 8.2 only (not reproducible in simulator)
741	// `in` check used to prevent JIT error (gh-2145)
742	// hasOwn isn't used here due to false negatives
743	// regarding Nodelist length in IE
744	var length = !!obj && "length" in obj && obj.length,
745		type = toType( obj );
746
747	if ( isFunction( obj ) || isWindow( obj ) ) {
748		return false;
749	}
750
751	return type === "array" || length === 0 ||
752		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
753}
754var Sizzle =
755/*!
756 * Sizzle CSS Selector Engine v2.3.6
757 * https://sizzlejs.com/
758 *
759 * Copyright JS Foundation and other contributors
760 * Released under the MIT license
761 * https://js.foundation/
762 *
763 * Date: 2021-02-16
764 */
765( function( window ) {
766var i,
767	support,
768	Expr,
769	getText,
770	isXML,
771	tokenize,
772	compile,
773	select,
774	outermostContext,
775	sortInput,
776	hasDuplicate,
777
778	// Local document vars
779	setDocument,
780	document,
781	docElem,
782	documentIsHTML,
783	rbuggyQSA,
784	rbuggyMatches,
785	matches,
786	contains,
787
788	// Instance-specific data
789	expando = "sizzle" + 1 * new Date(),
790	preferredDoc = window.document,
791	dirruns = 0,
792	done = 0,
793	classCache = createCache(),
794	tokenCache = createCache(),
795	compilerCache = createCache(),
796	nonnativeSelectorCache = createCache(),
797	sortOrder = function( a, b ) {
798		if ( a === b ) {
799			hasDuplicate = true;
800		}
801		return 0;
802	},
803
804	// Instance methods
805	hasOwn = ( {} ).hasOwnProperty,
806	arr = [],
807	pop = arr.pop,
808	pushNative = arr.push,
809	push = arr.push,
810	slice = arr.slice,
811
812	// Use a stripped-down indexOf as it's faster than native
813	// https://jsperf.com/thor-indexof-vs-for/5
814	indexOf = function( list, elem ) {
815		var i = 0,
816			len = list.length;
817		for ( ; i < len; i++ ) {
818			if ( list[ i ] === elem ) {
819				return i;
820			}
821		}
822		return -1;
823	},
824
825	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
826		"ismap|loop|multiple|open|readonly|required|scoped",
827
828	// Regular expressions
829
830	// http://www.w3.org/TR/css3-selectors/#whitespace
831	whitespace = "[\\x20\\t\\r\\n\\f]",
832
833	// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
834	identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
835		"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",
836
837	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
838	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
839
840		// Operator (capture 2)
841		"*([*^$|!~]?=)" + whitespace +
842
843		// "Attribute values must be CSS identifiers [capture 5]
844		// or strings [capture 3 or capture 4]"
845		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
846		whitespace + "*\\]",
847
848	pseudos = ":(" + identifier + ")(?:\\((" +
849
850		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
851		// 1. quoted (capture 3; capture 4 or capture 5)
852		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
853
854		// 2. simple (capture 6)
855		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
856
857		// 3. anything else (capture 2)
858		".*" +
859		")\\)|)",
860
861	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
862	rwhitespace = new RegExp( whitespace + "+", "g" ),
863	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
864		whitespace + "+$", "g" ),
865
866	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
867	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
868		"*" ),
869	rdescend = new RegExp( whitespace + "|>" ),
870
871	rpseudo = new RegExp( pseudos ),
872	ridentifier = new RegExp( "^" + identifier + "$" ),
873
874	matchExpr = {
875		"ID": new RegExp( "^#(" + identifier + ")" ),
876		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
877		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
878		"ATTR": new RegExp( "^" + attributes ),
879		"PSEUDO": new RegExp( "^" + pseudos ),
880		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
881			whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
882			whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
883		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
884
885		// For use in libraries implementing .is()
886		// We use this for POS matching in `select`
887		"needsContext": new RegExp( "^" + whitespace +
888			"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
889			"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
890	},
891
892	rhtml = /HTML$/i,
893	rinputs = /^(?:input|select|textarea|button)$/i,
894	rheader = /^h\d$/i,
895
896	rnative = /^[^{]+\{\s*\[native \w/,
897
898	// Easily-parseable/retrievable ID or TAG or CLASS selectors
899	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
900
901	rsibling = /[+~]/,
902
903	// CSS escapes
904	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
905	runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
906	funescape = function( escape, nonHex ) {
907		var high = "0x" + escape.slice( 1 ) - 0x10000;
908
909		return nonHex ?
910
911			// Strip the backslash prefix from a non-hex escape sequence
912			nonHex :
913
914			// Replace a hexadecimal escape sequence with the encoded Unicode code point
915			// Support: IE <=11+
916			// For values outside the Basic Multilingual Plane (BMP), manually construct a
917			// surrogate pair
918			high < 0 ?
919				String.fromCharCode( high + 0x10000 ) :
920				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
921	},
922
923	// CSS string/identifier serialization
924	// https://drafts.csswg.org/cssom/#common-serializing-idioms
925	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
926	fcssescape = function( ch, asCodePoint ) {
927		if ( asCodePoint ) {
928
929			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
930			if ( ch === "\0" ) {
931				return "\uFFFD";
932			}
933
934			// Control characters and (dependent upon position) numbers get escaped as code points
935			return ch.slice( 0, -1 ) + "\\" +
936				ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
937		}
938
939		// Other potentially-special ASCII characters get backslash-escaped
940		return "\\" + ch;
941	},
942
943	// Used for iframes
944	// See setDocument()
945	// Removing the function wrapper causes a "Permission Denied"
946	// error in IE
947	unloadHandler = function() {
948		setDocument();
949	},
950
951	inDisabledFieldset = addCombinator(
952		function( elem ) {
953			return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
954		},
955		{ dir: "parentNode", next: "legend" }
956	);
957
958// Optimize for push.apply( _, NodeList )
959try {
960	push.apply(
961		( arr = slice.call( preferredDoc.childNodes ) ),
962		preferredDoc.childNodes
963	);
964
965	// Support: Android<4.0
966	// Detect silently failing push.apply
967	// eslint-disable-next-line no-unused-expressions
968	arr[ preferredDoc.childNodes.length ].nodeType;
969} catch ( e ) {
970	push = { apply: arr.length ?
971
972		// Leverage slice if possible
973		function( target, els ) {
974			pushNative.apply( target, slice.call( els ) );
975		} :
976
977		// Support: IE<9
978		// Otherwise append directly
979		function( target, els ) {
980			var j = target.length,
981				i = 0;
982
983			// Can't trust NodeList.length
984			while ( ( target[ j++ ] = els[ i++ ] ) ) {}
985			target.length = j - 1;
986		}
987	};
988}
989
990function Sizzle( selector, context, results, seed ) {
991	var m, i, elem, nid, match, groups, newSelector,
992		newContext = context && context.ownerDocument,
993
994		// nodeType defaults to 9, since context defaults to document
995		nodeType = context ? context.nodeType : 9;
996
997	results = results || [];
998
999	// Return early from calls with invalid selector or context
1000	if ( typeof selector !== "string" || !selector ||
1001		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
1002
1003		return results;
1004	}
1005
1006	// Try to shortcut find operations (as opposed to filters) in HTML documents
1007	if ( !seed ) {
1008		setDocument( context );
1009		context = context || document;
1010
1011		if ( documentIsHTML ) {
1012
1013			// If the selector is sufficiently simple, try using a "get*By*" DOM method
1014			// (excepting DocumentFragment context, where the methods don't exist)
1015			if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {
1016
1017				// ID selector
1018				if ( ( m = match[ 1 ] ) ) {
1019
1020					// Document context
1021					if ( nodeType === 9 ) {
1022						if ( ( elem = context.getElementById( m ) ) ) {
1023
1024							// Support: IE, Opera, Webkit
1025							// TODO: identify versions
1026							// getElementById can match elements by name instead of ID
1027							if ( elem.id === m ) {
1028								results.push( elem );
1029								return results;
1030							}
1031						} else {
1032							return results;
1033						}
1034
1035					// Element context
1036					} else {
1037
1038						// Support: IE, Opera, Webkit
1039						// TODO: identify versions
1040						// getElementById can match elements by name instead of ID
1041						if ( newContext && ( elem = newContext.getElementById( m ) ) &&
1042							contains( context, elem ) &&
1043							elem.id === m ) {
1044
1045							results.push( elem );
1046							return results;
1047						}
1048					}
1049
1050				// Type selector
1051				} else if ( match[ 2 ] ) {
1052					push.apply( results, context.getElementsByTagName( selector ) );
1053					return results;
1054
1055				// Class selector
1056				} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
1057					context.getElementsByClassName ) {
1058
1059					push.apply( results, context.getElementsByClassName( m ) );
1060					return results;
1061				}
1062			}
1063
1064			// Take advantage of querySelectorAll
1065			if ( support.qsa &&
1066				!nonnativeSelectorCache[ selector + " " ] &&
1067				( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&
1068
1069				// Support: IE 8 only
1070				// Exclude object elements
1071				( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {
1072
1073				newSelector = selector;
1074				newContext = context;
1075
1076				// qSA considers elements outside a scoping root when evaluating child or
1077				// descendant combinators, which is not what we want.
1078				// In such cases, we work around the behavior by prefixing every selector in the
1079				// list with an ID selector referencing the scope context.
1080				// The technique has to be used as well when a leading combinator is used
1081				// as such selectors are not recognized by querySelectorAll.
1082				// Thanks to Andrew Dupont for this technique.
1083				if ( nodeType === 1 &&
1084					( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {
1085
1086					// Expand context for sibling selectors
1087					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
1088						context;
1089
1090					// We can use :scope instead of the ID hack if the browser
1091					// supports it & if we're not changing the context.
1092					if ( newContext !== context || !support.scope ) {
1093
1094						// Capture the context ID, setting it first if necessary
1095						if ( ( nid = context.getAttribute( "id" ) ) ) {
1096							nid = nid.replace( rcssescape, fcssescape );
1097						} else {
1098							context.setAttribute( "id", ( nid = expando ) );
1099						}
1100					}
1101
1102					// Prefix every selector in the list
1103					groups = tokenize( selector );
1104					i = groups.length;
1105					while ( i-- ) {
1106						groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
1107							toSelector( groups[ i ] );
1108					}
1109					newSelector = groups.join( "," );
1110				}
1111
1112				try {
1113					push.apply( results,
1114						newContext.querySelectorAll( newSelector )
1115					);
1116					return results;
1117				} catch ( qsaError ) {
1118					nonnativeSelectorCache( selector, true );
1119				} finally {
1120					if ( nid === expando ) {
1121						context.removeAttribute( "id" );
1122					}
1123				}
1124			}
1125		}
1126	}
1127
1128	// All others
1129	return select( selector.replace( rtrim, "$1" ), context, results, seed );
1130}
1131
1132/**
1133 * Create key-value caches of limited size
1134 * @returns {function(string, object)} Returns the Object data after storing it on itself with
1135 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
1136 *	deleting the oldest entry
1137 */
1138function createCache() {
1139	var keys = [];
1140
1141	function cache( key, value ) {
1142
1143		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
1144		if ( keys.push( key + " " ) > Expr.cacheLength ) {
1145
1146			// Only keep the most recent entries
1147			delete cache[ keys.shift() ];
1148		}
1149		return ( cache[ key + " " ] = value );
1150	}
1151	return cache;
1152}
1153
1154/**
1155 * Mark a function for special use by Sizzle
1156 * @param {Function} fn The function to mark
1157 */
1158function markFunction( fn ) {
1159	fn[ expando ] = true;
1160	return fn;
1161}
1162
1163/**
1164 * Support testing using an element
1165 * @param {Function} fn Passed the created element and returns a boolean result
1166 */
1167function assert( fn ) {
1168	var el = document.createElement( "fieldset" );
1169
1170	try {
1171		return !!fn( el );
1172	} catch ( e ) {
1173		return false;
1174	} finally {
1175
1176		// Remove from its parent by default
1177		if ( el.parentNode ) {
1178			el.parentNode.removeChild( el );
1179		}
1180
1181		// release memory in IE
1182		el = null;
1183	}
1184}
1185
1186/**
1187 * Adds the same handler for all of the specified attrs
1188 * @param {String} attrs Pipe-separated list of attributes
1189 * @param {Function} handler The method that will be applied
1190 */
1191function addHandle( attrs, handler ) {
1192	var arr = attrs.split( "|" ),
1193		i = arr.length;
1194
1195	while ( i-- ) {
1196		Expr.attrHandle[ arr[ i ] ] = handler;
1197	}
1198}
1199
1200/**
1201 * Checks document order of two siblings
1202 * @param {Element} a
1203 * @param {Element} b
1204 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
1205 */
1206function siblingCheck( a, b ) {
1207	var cur = b && a,
1208		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
1209			a.sourceIndex - b.sourceIndex;
1210
1211	// Use IE sourceIndex if available on both nodes
1212	if ( diff ) {
1213		return diff;
1214	}
1215
1216	// Check if b follows a
1217	if ( cur ) {
1218		while ( ( cur = cur.nextSibling ) ) {
1219			if ( cur === b ) {
1220				return -1;
1221			}
1222		}
1223	}
1224
1225	return a ? 1 : -1;
1226}
1227
1228/**
1229 * Returns a function to use in pseudos for input types
1230 * @param {String} type
1231 */
1232function createInputPseudo( type ) {
1233	return function( elem ) {
1234		var name = elem.nodeName.toLowerCase();
1235		return name === "input" && elem.type === type;
1236	};
1237}
1238
1239/**
1240 * Returns a function to use in pseudos for buttons
1241 * @param {String} type
1242 */
1243function createButtonPseudo( type ) {
1244	return function( elem ) {
1245		var name = elem.nodeName.toLowerCase();
1246		return ( name === "input" || name === "button" ) && elem.type === type;
1247	};
1248}
1249
1250/**
1251 * Returns a function to use in pseudos for :enabled/:disabled
1252 * @param {Boolean} disabled true for :disabled; false for :enabled
1253 */
1254function createDisabledPseudo( disabled ) {
1255
1256	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
1257	return function( elem ) {
1258
1259		// Only certain elements can match :enabled or :disabled
1260		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
1261		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
1262		if ( "form" in elem ) {
1263
1264			// Check for inherited disabledness on relevant non-disabled elements:
1265			// * listed form-associated elements in a disabled fieldset
1266			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
1267			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
1268			// * option elements in a disabled optgroup
1269			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
1270			// All such elements have a "form" property.
1271			if ( elem.parentNode && elem.disabled === false ) {
1272
1273				// Option elements defer to a parent optgroup if present
1274				if ( "label" in elem ) {
1275					if ( "label" in elem.parentNode ) {
1276						return elem.parentNode.disabled === disabled;
1277					} else {
1278						return elem.disabled === disabled;
1279					}
1280				}
1281
1282				// Support: IE 6 - 11
1283				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
1284				return elem.isDisabled === disabled ||
1285
1286					// Where there is no isDisabled, check manually
1287					/* jshint -W018 */
1288					elem.isDisabled !== !disabled &&
1289					inDisabledFieldset( elem ) === disabled;
1290			}
1291
1292			return elem.disabled === disabled;
1293
1294		// Try to winnow out elements that can't be disabled before trusting the disabled property.
1295		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
1296		// even exist on them, let alone have a boolean value.
1297		} else if ( "label" in elem ) {
1298			return elem.disabled === disabled;
1299		}
1300
1301		// Remaining elements are neither :enabled nor :disabled
1302		return false;
1303	};
1304}
1305
1306/**
1307 * Returns a function to use in pseudos for positionals
1308 * @param {Function} fn
1309 */
1310function createPositionalPseudo( fn ) {
1311	return markFunction( function( argument ) {
1312		argument = +argument;
1313		return markFunction( function( seed, matches ) {
1314			var j,
1315				matchIndexes = fn( [], seed.length, argument ),
1316				i = matchIndexes.length;
1317
1318			// Match elements found at the specified indexes
1319			while ( i-- ) {
1320				if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
1321					seed[ j ] = !( matches[ j ] = seed[ j ] );
1322				}
1323			}
1324		} );
1325	} );
1326}
1327
1328/**
1329 * Checks a node for validity as a Sizzle context
1330 * @param {Element|Object=} context
1331 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
1332 */
1333function testContext( context ) {
1334	return context && typeof context.getElementsByTagName !== "undefined" && context;
1335}
1336
1337// Expose support vars for convenience
1338support = Sizzle.support = {};
1339
1340/**
1341 * Detects XML nodes
1342 * @param {Element|Object} elem An element or a document
1343 * @returns {Boolean} True iff elem is a non-HTML XML node
1344 */
1345isXML = Sizzle.isXML = function( elem ) {
1346	var namespace = elem && elem.namespaceURI,
1347		docElem = elem && ( elem.ownerDocument || elem ).documentElement;
1348
1349	// Support: IE <=8
1350	// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
1351	// https://bugs.jquery.com/ticket/4833
1352	return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
1353};
1354
1355/**
1356 * Sets document-related variables once based on the current document
1357 * @param {Element|Object} [doc] An element or document object to use to set the document
1358 * @returns {Object} Returns the current document
1359 */
1360setDocument = Sizzle.setDocument = function( node ) {
1361	var hasCompare, subWindow,
1362		doc = node ? node.ownerDocument || node : preferredDoc;
1363
1364	// Return early if doc is invalid or already selected
1365	// Support: IE 11+, Edge 17 - 18+
1366	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1367	// two documents; shallow comparisons work.
1368	// eslint-disable-next-line eqeqeq
1369	if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
1370		return document;
1371	}
1372
1373	// Update global variables
1374	document = doc;
1375	docElem = document.documentElement;
1376	documentIsHTML = !isXML( document );
1377
1378	// Support: IE 9 - 11+, Edge 12 - 18+
1379	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
1380	// Support: IE 11+, Edge 17 - 18+
1381	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1382	// two documents; shallow comparisons work.
1383	// eslint-disable-next-line eqeqeq
1384	if ( preferredDoc != document &&
1385		( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {
1386
1387		// Support: IE 11, Edge
1388		if ( subWindow.addEventListener ) {
1389			subWindow.addEventListener( "unload", unloadHandler, false );
1390
1391		// Support: IE 9 - 10 only
1392		} else if ( subWindow.attachEvent ) {
1393			subWindow.attachEvent( "onunload", unloadHandler );
1394		}
1395	}
1396
1397	// Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
1398	// Safari 4 - 5 only, Opera <=11.6 - 12.x only
1399	// IE/Edge & older browsers don't support the :scope pseudo-class.
1400	// Support: Safari 6.0 only
1401	// Safari 6.0 supports :scope but it's an alias of :root there.
1402	support.scope = assert( function( el ) {
1403		docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
1404		return typeof el.querySelectorAll !== "undefined" &&
1405			!el.querySelectorAll( ":scope fieldset div" ).length;
1406	} );
1407
1408	/* Attributes
1409	---------------------------------------------------------------------- */
1410
1411	// Support: IE<8
1412	// Verify that getAttribute really returns attributes and not properties
1413	// (excepting IE8 booleans)
1414	support.attributes = assert( function( el ) {
1415		el.className = "i";
1416		return !el.getAttribute( "className" );
1417	} );
1418
1419	/* getElement(s)By*
1420	---------------------------------------------------------------------- */
1421
1422	// Check if getElementsByTagName("*") returns only elements
1423	support.getElementsByTagName = assert( function( el ) {
1424		el.appendChild( document.createComment( "" ) );
1425		return !el.getElementsByTagName( "*" ).length;
1426	} );
1427
1428	// Support: IE<9
1429	support.getElementsByClassName = rnative.test( document.getElementsByClassName );
1430
1431	// Support: IE<10
1432	// Check if getElementById returns elements by name
1433	// The broken getElementById methods don't pick up programmatically-set names,
1434	// so use a roundabout getElementsByName test
1435	support.getById = assert( function( el ) {
1436		docElem.appendChild( el ).id = expando;
1437		return !document.getElementsByName || !document.getElementsByName( expando ).length;
1438	} );
1439
1440	// ID filter and find
1441	if ( support.getById ) {
1442		Expr.filter[ "ID" ] = function( id ) {
1443			var attrId = id.replace( runescape, funescape );
1444			return function( elem ) {
1445				return elem.getAttribute( "id" ) === attrId;
1446			};
1447		};
1448		Expr.find[ "ID" ] = function( id, context ) {
1449			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1450				var elem = context.getElementById( id );
1451				return elem ? [ elem ] : [];
1452			}
1453		};
1454	} else {
1455		Expr.filter[ "ID" ] =  function( id ) {
1456			var attrId = id.replace( runescape, funescape );
1457			return function( elem ) {
1458				var node = typeof elem.getAttributeNode !== "undefined" &&
1459					elem.getAttributeNode( "id" );
1460				return node && node.value === attrId;
1461			};
1462		};
1463
1464		// Support: IE 6 - 7 only
1465		// getElementById is not reliable as a find shortcut
1466		Expr.find[ "ID" ] = function( id, context ) {
1467			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1468				var node, i, elems,
1469					elem = context.getElementById( id );
1470
1471				if ( elem ) {
1472
1473					// Verify the id attribute
1474					node = elem.getAttributeNode( "id" );
1475					if ( node && node.value === id ) {
1476						return [ elem ];
1477					}
1478
1479					// Fall back on getElementsByName
1480					elems = context.getElementsByName( id );
1481					i = 0;
1482					while ( ( elem = elems[ i++ ] ) ) {
1483						node = elem.getAttributeNode( "id" );
1484						if ( node && node.value === id ) {
1485							return [ elem ];
1486						}
1487					}
1488				}
1489
1490				return [];
1491			}
1492		};
1493	}
1494
1495	// Tag
1496	Expr.find[ "TAG" ] = support.getElementsByTagName ?
1497		function( tag, context ) {
1498			if ( typeof context.getElementsByTagName !== "undefined" ) {
1499				return context.getElementsByTagName( tag );
1500
1501			// DocumentFragment nodes don't have gEBTN
1502			} else if ( support.qsa ) {
1503				return context.querySelectorAll( tag );
1504			}
1505		} :
1506
1507		function( tag, context ) {
1508			var elem,
1509				tmp = [],
1510				i = 0,
1511
1512				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
1513				results = context.getElementsByTagName( tag );
1514
1515			// Filter out possible comments
1516			if ( tag === "*" ) {
1517				while ( ( elem = results[ i++ ] ) ) {
1518					if ( elem.nodeType === 1 ) {
1519						tmp.push( elem );
1520					}
1521				}
1522
1523				return tmp;
1524			}
1525			return results;
1526		};
1527
1528	// Class
1529	Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
1530		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
1531			return context.getElementsByClassName( className );
1532		}
1533	};
1534
1535	/* QSA/matchesSelector
1536	---------------------------------------------------------------------- */
1537
1538	// QSA and matchesSelector support
1539
1540	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
1541	rbuggyMatches = [];
1542
1543	// qSa(:focus) reports false when true (Chrome 21)
1544	// We allow this because of a bug in IE8/9 that throws an error
1545	// whenever `document.activeElement` is accessed on an iframe
1546	// So, we allow :focus to pass through QSA all the time to avoid the IE error
1547	// See https://bugs.jquery.com/ticket/13378
1548	rbuggyQSA = [];
1549
1550	if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {
1551
1552		// Build QSA regex
1553		// Regex strategy adopted from Diego Perini
1554		assert( function( el ) {
1555
1556			var input;
1557
1558			// Select is set to empty string on purpose
1559			// This is to test IE's treatment of not explicitly
1560			// setting a boolean content attribute,
1561			// since its presence should be enough
1562			// https://bugs.jquery.com/ticket/12359
1563			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
1564				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
1565				"<option selected=''></option></select>";
1566
1567			// Support: IE8, Opera 11-12.16
1568			// Nothing should be selected when empty strings follow ^= or $= or *=
1569			// The test attribute must be unknown in Opera but "safe" for WinRT
1570			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
1571			if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) {
1572				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
1573			}
1574
1575			// Support: IE8
1576			// Boolean attributes and "value" are not treated correctly
1577			if ( !el.querySelectorAll( "[selected]" ).length ) {
1578				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
1579			}
1580
1581			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
1582			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
1583				rbuggyQSA.push( "~=" );
1584			}
1585
1586			// Support: IE 11+, Edge 15 - 18+
1587			// IE 11/Edge don't find elements on a `[name='']` query in some cases.
1588			// Adding a temporary attribute to the document before the selection works
1589			// around the issue.
1590			// Interestingly, IE 10 & older don't seem to have the issue.
1591			input = document.createElement( "input" );
1592			input.setAttribute( "name", "" );
1593			el.appendChild( input );
1594			if ( !el.querySelectorAll( "[name='']" ).length ) {
1595				rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
1596					whitespace + "*(?:''|\"\")" );
1597			}
1598
1599			// Webkit/Opera - :checked should return selected option elements
1600			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
1601			// IE8 throws error here and will not see later tests
1602			if ( !el.querySelectorAll( ":checked" ).length ) {
1603				rbuggyQSA.push( ":checked" );
1604			}
1605
1606			// Support: Safari 8+, iOS 8+
1607			// https://bugs.webkit.org/show_bug.cgi?id=136851
1608			// In-page `selector#id sibling-combinator selector` fails
1609			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
1610				rbuggyQSA.push( ".#.+[+~]" );
1611			}
1612
1613			// Support: Firefox <=3.6 - 5 only
1614			// Old Firefox doesn't throw on a badly-escaped identifier.
1615			el.querySelectorAll( "\\\f" );
1616			rbuggyQSA.push( "[\\r\\n\\f]" );
1617		} );
1618
1619		assert( function( el ) {
1620			el.innerHTML = "<a href='' disabled='disabled'></a>" +
1621				"<select disabled='disabled'><option/></select>";
1622
1623			// Support: Windows 8 Native Apps
1624			// The type and name attributes are restricted during .innerHTML assignment
1625			var input = document.createElement( "input" );
1626			input.setAttribute( "type", "hidden" );
1627			el.appendChild( input ).setAttribute( "name", "D" );
1628
1629			// Support: IE8
1630			// Enforce case-sensitivity of name attribute
1631			if ( el.querySelectorAll( "[name=d]" ).length ) {
1632				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
1633			}
1634
1635			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
1636			// IE8 throws error here and will not see later tests
1637			if ( el.querySelectorAll( ":enabled" ).length !== 2 ) {
1638				rbuggyQSA.push( ":enabled", ":disabled" );
1639			}
1640
1641			// Support: IE9-11+
1642			// IE's :disabled selector does not pick up the children of disabled fieldsets
1643			docElem.appendChild( el ).disabled = true;
1644			if ( el.querySelectorAll( ":disabled" ).length !== 2 ) {
1645				rbuggyQSA.push( ":enabled", ":disabled" );
1646			}
1647
1648			// Support: Opera 10 - 11 only
1649			// Opera 10-11 does not throw on post-comma invalid pseudos
1650			el.querySelectorAll( "*,:x" );
1651			rbuggyQSA.push( ",.*:" );
1652		} );
1653	}
1654
1655	if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
1656		docElem.webkitMatchesSelector ||
1657		docElem.mozMatchesSelector ||
1658		docElem.oMatchesSelector ||
1659		docElem.msMatchesSelector ) ) ) ) {
1660
1661		assert( function( el ) {
1662
1663			// Check to see if it's possible to do matchesSelector
1664			// on a disconnected node (IE 9)
1665			support.disconnectedMatch = matches.call( el, "*" );
1666
1667			// This should fail with an exception
1668			// Gecko does not error, returns false instead
1669			matches.call( el, "[s!='']:x" );
1670			rbuggyMatches.push( "!=", pseudos );
1671		} );
1672	}
1673
1674	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
1675	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );
1676
1677	/* Contains
1678	---------------------------------------------------------------------- */
1679	hasCompare = rnative.test( docElem.compareDocumentPosition );
1680
1681	// Element contains another
1682	// Purposefully self-exclusive
1683	// As in, an element does not contain itself
1684	contains = hasCompare || rnative.test( docElem.contains ) ?
1685		function( a, b ) {
1686			var adown = a.nodeType === 9 ? a.documentElement : a,
1687				bup = b && b.parentNode;
1688			return a === bup || !!( bup && bup.nodeType === 1 && (
1689				adown.contains ?
1690					adown.contains( bup ) :
1691					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
1692			) );
1693		} :
1694		function( a, b ) {
1695			if ( b ) {
1696				while ( ( b = b.parentNode ) ) {
1697					if ( b === a ) {
1698						return true;
1699					}
1700				}
1701			}
1702			return false;
1703		};
1704
1705	/* Sorting
1706	---------------------------------------------------------------------- */
1707
1708	// Document order sorting
1709	sortOrder = hasCompare ?
1710	function( a, b ) {
1711
1712		// Flag for duplicate removal
1713		if ( a === b ) {
1714			hasDuplicate = true;
1715			return 0;
1716		}
1717
1718		// Sort on method existence if only one input has compareDocumentPosition
1719		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
1720		if ( compare ) {
1721			return compare;
1722		}
1723
1724		// Calculate position if both inputs belong to the same document
1725		// Support: IE 11+, Edge 17 - 18+
1726		// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1727		// two documents; shallow comparisons work.
1728		// eslint-disable-next-line eqeqeq
1729		compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
1730			a.compareDocumentPosition( b ) :
1731
1732			// Otherwise we know they are disconnected
1733			1;
1734
1735		// Disconnected nodes
1736		if ( compare & 1 ||
1737			( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {
1738
1739			// Choose the first element that is related to our preferred document
1740			// Support: IE 11+, Edge 17 - 18+
1741			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1742			// two documents; shallow comparisons work.
1743			// eslint-disable-next-line eqeqeq
1744			if ( a == document || a.ownerDocument == preferredDoc &&
1745				contains( preferredDoc, a ) ) {
1746				return -1;
1747			}
1748
1749			// Support: IE 11+, Edge 17 - 18+
1750			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1751			// two documents; shallow comparisons work.
1752			// eslint-disable-next-line eqeqeq
1753			if ( b == document || b.ownerDocument == preferredDoc &&
1754				contains( preferredDoc, b ) ) {
1755				return 1;
1756			}
1757
1758			// Maintain original order
1759			return sortInput ?
1760				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1761				0;
1762		}
1763
1764		return compare & 4 ? -1 : 1;
1765	} :
1766	function( a, b ) {
1767
1768		// Exit early if the nodes are identical
1769		if ( a === b ) {
1770			hasDuplicate = true;
1771			return 0;
1772		}
1773
1774		var cur,
1775			i = 0,
1776			aup = a.parentNode,
1777			bup = b.parentNode,
1778			ap = [ a ],
1779			bp = [ b ];
1780
1781		// Parentless nodes are either documents or disconnected
1782		if ( !aup || !bup ) {
1783
1784			// Support: IE 11+, Edge 17 - 18+
1785			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1786			// two documents; shallow comparisons work.
1787			/* eslint-disable eqeqeq */
1788			return a == document ? -1 :
1789				b == document ? 1 :
1790				/* eslint-enable eqeqeq */
1791				aup ? -1 :
1792				bup ? 1 :
1793				sortInput ?
1794				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1795				0;
1796
1797		// If the nodes are siblings, we can do a quick check
1798		} else if ( aup === bup ) {
1799			return siblingCheck( a, b );
1800		}
1801
1802		// Otherwise we need full lists of their ancestors for comparison
1803		cur = a;
1804		while ( ( cur = cur.parentNode ) ) {
1805			ap.unshift( cur );
1806		}
1807		cur = b;
1808		while ( ( cur = cur.parentNode ) ) {
1809			bp.unshift( cur );
1810		}
1811
1812		// Walk down the tree looking for a discrepancy
1813		while ( ap[ i ] === bp[ i ] ) {
1814			i++;
1815		}
1816
1817		return i ?
1818
1819			// Do a sibling check if the nodes have a common ancestor
1820			siblingCheck( ap[ i ], bp[ i ] ) :
1821
1822			// Otherwise nodes in our document sort first
1823			// Support: IE 11+, Edge 17 - 18+
1824			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1825			// two documents; shallow comparisons work.
1826			/* eslint-disable eqeqeq */
1827			ap[ i ] == preferredDoc ? -1 :
1828			bp[ i ] == preferredDoc ? 1 :
1829			/* eslint-enable eqeqeq */
1830			0;
1831	};
1832
1833	return document;
1834};
1835
1836Sizzle.matches = function( expr, elements ) {
1837	return Sizzle( expr, null, null, elements );
1838};
1839
1840Sizzle.matchesSelector = function( elem, expr ) {
1841	setDocument( elem );
1842
1843	if ( support.matchesSelector && documentIsHTML &&
1844		!nonnativeSelectorCache[ expr + " " ] &&
1845		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
1846		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
1847
1848		try {
1849			var ret = matches.call( elem, expr );
1850
1851			// IE 9's matchesSelector returns false on disconnected nodes
1852			if ( ret || support.disconnectedMatch ||
1853
1854				// As well, disconnected nodes are said to be in a document
1855				// fragment in IE 9
1856				elem.document && elem.document.nodeType !== 11 ) {
1857				return ret;
1858			}
1859		} catch ( e ) {
1860			nonnativeSelectorCache( expr, true );
1861		}
1862	}
1863
1864	return Sizzle( expr, document, null, [ elem ] ).length > 0;
1865};
1866
1867Sizzle.contains = function( context, elem ) {
1868
1869	// Set document vars if needed
1870	// Support: IE 11+, Edge 17 - 18+
1871	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1872	// two documents; shallow comparisons work.
1873	// eslint-disable-next-line eqeqeq
1874	if ( ( context.ownerDocument || context ) != document ) {
1875		setDocument( context );
1876	}
1877	return contains( context, elem );
1878};
1879
1880Sizzle.attr = function( elem, name ) {
1881
1882	// Set document vars if needed
1883	// Support: IE 11+, Edge 17 - 18+
1884	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
1885	// two documents; shallow comparisons work.
1886	// eslint-disable-next-line eqeqeq
1887	if ( ( elem.ownerDocument || elem ) != document ) {
1888		setDocument( elem );
1889	}
1890
1891	var fn = Expr.attrHandle[ name.toLowerCase() ],
1892
1893		// Don't get fooled by Object.prototype properties (jQuery #13807)
1894		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
1895			fn( elem, name, !documentIsHTML ) :
1896			undefined;
1897
1898	return val !== undefined ?
1899		val :
1900		support.attributes || !documentIsHTML ?
1901			elem.getAttribute( name ) :
1902			( val = elem.getAttributeNode( name ) ) && val.specified ?
1903				val.value :
1904				null;
1905};
1906
1907Sizzle.escape = function( sel ) {
1908	return ( sel + "" ).replace( rcssescape, fcssescape );
1909};
1910
1911Sizzle.error = function( msg ) {
1912	throw new Error( "Syntax error, unrecognized expression: " + msg );
1913};
1914
1915/**
1916 * Document sorting and removing duplicates
1917 * @param {ArrayLike} results
1918 */
1919Sizzle.uniqueSort = function( results ) {
1920	var elem,
1921		duplicates = [],
1922		j = 0,
1923		i = 0;
1924
1925	// Unless we *know* we can detect duplicates, assume their presence
1926	hasDuplicate = !support.detectDuplicates;
1927	sortInput = !support.sortStable && results.slice( 0 );
1928	results.sort( sortOrder );
1929
1930	if ( hasDuplicate ) {
1931		while ( ( elem = results[ i++ ] ) ) {
1932			if ( elem === results[ i ] ) {
1933				j = duplicates.push( i );
1934			}
1935		}
1936		while ( j-- ) {
1937			results.splice( duplicates[ j ], 1 );
1938		}
1939	}
1940
1941	// Clear input after sorting to release objects
1942	// See https://github.com/jquery/sizzle/pull/225
1943	sortInput = null;
1944
1945	return results;
1946};
1947
1948/**
1949 * Utility function for retrieving the text value of an array of DOM nodes
1950 * @param {Array|Element} elem
1951 */
1952getText = Sizzle.getText = function( elem ) {
1953	var node,
1954		ret = "",
1955		i = 0,
1956		nodeType = elem.nodeType;
1957
1958	if ( !nodeType ) {
1959
1960		// If no nodeType, this is expected to be an array
1961		while ( ( node = elem[ i++ ] ) ) {
1962
1963			// Do not traverse comment nodes
1964			ret += getText( node );
1965		}
1966	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
1967
1968		// Use textContent for elements
1969		// innerText usage removed for consistency of new lines (jQuery #11153)
1970		if ( typeof elem.textContent === "string" ) {
1971			return elem.textContent;
1972		} else {
1973
1974			// Traverse its children
1975			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
1976				ret += getText( elem );
1977			}
1978		}
1979	} else if ( nodeType === 3 || nodeType === 4 ) {
1980		return elem.nodeValue;
1981	}
1982
1983	// Do not include comment or processing instruction nodes
1984
1985	return ret;
1986};
1987
1988Expr = Sizzle.selectors = {
1989
1990	// Can be adjusted by the user
1991	cacheLength: 50,
1992
1993	createPseudo: markFunction,
1994
1995	match: matchExpr,
1996
1997	attrHandle: {},
1998
1999	find: {},
2000
2001	relative: {
2002		">": { dir: "parentNode", first: true },
2003		" ": { dir: "parentNode" },
2004		"+": { dir: "previousSibling", first: true },
2005		"~": { dir: "previousSibling" }
2006	},
2007
2008	preFilter: {
2009		"ATTR": function( match ) {
2010			match[ 1 ] = match[ 1 ].replace( runescape, funescape );
2011
2012			// Move the given value to match[3] whether quoted or unquoted
2013			match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
2014				match[ 5 ] || "" ).replace( runescape, funescape );
2015
2016			if ( match[ 2 ] === "~=" ) {
2017				match[ 3 ] = " " + match[ 3 ] + " ";
2018			}
2019
2020			return match.slice( 0, 4 );
2021		},
2022
2023		"CHILD": function( match ) {
2024
2025			/* matches from matchExpr["CHILD"]
2026				1 type (only|nth|...)
2027				2 what (child|of-type)
2028				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
2029				4 xn-component of xn+y argument ([+-]?\d*n|)
2030				5 sign of xn-component
2031				6 x of xn-component
2032				7 sign of y-component
2033				8 y of y-component
2034			*/
2035			match[ 1 ] = match[ 1 ].toLowerCase();
2036
2037			if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {
2038
2039				// nth-* requires argument
2040				if ( !match[ 3 ] ) {
2041					Sizzle.error( match[ 0 ] );
2042				}
2043
2044				// numeric x and y parameters for Expr.filter.CHILD
2045				// remember that false/true cast respectively to 0/1
2046				match[ 4 ] = +( match[ 4 ] ?
2047					match[ 5 ] + ( match[ 6 ] || 1 ) :
2048					2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
2049				match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );
2050
2051				// other types prohibit arguments
2052			} else if ( match[ 3 ] ) {
2053				Sizzle.error( match[ 0 ] );
2054			}
2055
2056			return match;
2057		},
2058
2059		"PSEUDO": function( match ) {
2060			var excess,
2061				unquoted = !match[ 6 ] && match[ 2 ];
2062
2063			if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
2064				return null;
2065			}
2066
2067			// Accept quoted arguments as-is
2068			if ( match[ 3 ] ) {
2069				match[ 2 ] = match[ 4 ] || match[ 5 ] || "";
2070
2071			// Strip excess characters from unquoted arguments
2072			} else if ( unquoted && rpseudo.test( unquoted ) &&
2073
2074				// Get excess from tokenize (recursively)
2075				( excess = tokenize( unquoted, true ) ) &&
2076
2077				// advance to the next closing parenthesis
2078				( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {
2079
2080				// excess is a negative index
2081				match[ 0 ] = match[ 0 ].slice( 0, excess );
2082				match[ 2 ] = unquoted.slice( 0, excess );
2083			}
2084
2085			// Return only captures needed by the pseudo filter method (type and argument)
2086			return match.slice( 0, 3 );
2087		}
2088	},
2089
2090	filter: {
2091
2092		"TAG": function( nodeNameSelector ) {
2093			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
2094			return nodeNameSelector === "*" ?
2095				function() {
2096					return true;
2097				} :
2098				function( elem ) {
2099					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
2100				};
2101		},
2102
2103		"CLASS": function( className ) {
2104			var pattern = classCache[ className + " " ];
2105
2106			return pattern ||
2107				( pattern = new RegExp( "(^|" + whitespace +
2108					")" + className + "(" + whitespace + "|$)" ) ) && classCache(
2109						className, function( elem ) {
2110							return pattern.test(
2111								typeof elem.className === "string" && elem.className ||
2112								typeof elem.getAttribute !== "undefined" &&
2113									elem.getAttribute( "class" ) ||
2114								""
2115							);
2116				} );
2117		},
2118
2119		"ATTR": function( name, operator, check ) {
2120			return function( elem ) {
2121				var result = Sizzle.attr( elem, name );
2122
2123				if ( result == null ) {
2124					return operator === "!=";
2125				}
2126				if ( !operator ) {
2127					return true;
2128				}
2129
2130				result += "";
2131
2132				/* eslint-disable max-len */
2133
2134				return operator === "=" ? result === check :
2135					operator === "!=" ? result !== check :
2136					operator === "^=" ? check && result.indexOf( check ) === 0 :
2137					operator === "*=" ? check && result.indexOf( check ) > -1 :
2138					operator === "$=" ? check && result.slice( -check.length ) === check :
2139					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
2140					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
2141					false;
2142				/* eslint-enable max-len */
2143
2144			};
2145		},
2146
2147		"CHILD": function( type, what, _argument, first, last ) {
2148			var simple = type.slice( 0, 3 ) !== "nth",
2149				forward = type.slice( -4 ) !== "last",
2150				ofType = what === "of-type";
2151
2152			return first === 1 && last === 0 ?
2153
2154				// Shortcut for :nth-*(n)
2155				function( elem ) {
2156					return !!elem.parentNode;
2157				} :
2158
2159				function( elem, _context, xml ) {
2160					var cache, uniqueCache, outerCache, node, nodeIndex, start,
2161						dir = simple !== forward ? "nextSibling" : "previousSibling",
2162						parent = elem.parentNode,
2163						name = ofType && elem.nodeName.toLowerCase(),
2164						useCache = !xml && !ofType,
2165						diff = false;
2166
2167					if ( parent ) {
2168
2169						// :(first|last|only)-(child|of-type)
2170						if ( simple ) {
2171							while ( dir ) {
2172								node = elem;
2173								while ( ( node = node[ dir ] ) ) {
2174									if ( ofType ?
2175										node.nodeName.toLowerCase() === name :
2176										node.nodeType === 1 ) {
2177
2178										return false;
2179									}
2180								}
2181
2182								// Reverse direction for :only-* (if we haven't yet done so)
2183								start = dir = type === "only" && !start && "nextSibling";
2184							}
2185							return true;
2186						}
2187
2188						start = [ forward ? parent.firstChild : parent.lastChild ];
2189
2190						// non-xml :nth-child(...) stores cache data on `parent`
2191						if ( forward && useCache ) {
2192
2193							// Seek `elem` from a previously-cached index
2194
2195							// ...in a gzip-friendly way
2196							node = parent;
2197							outerCache = node[ expando ] || ( node[ expando ] = {} );
2198
2199							// Support: IE <9 only
2200							// Defend against cloned attroperties (jQuery gh-1709)
2201							uniqueCache = outerCache[ node.uniqueID ] ||
2202								( outerCache[ node.uniqueID ] = {} );
2203
2204							cache = uniqueCache[ type ] || [];
2205							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
2206							diff = nodeIndex && cache[ 2 ];
2207							node = nodeIndex && parent.childNodes[ nodeIndex ];
2208
2209							while ( ( node = ++nodeIndex && node && node[ dir ] ||
2210
2211								// Fallback to seeking `elem` from the start
2212								( diff = nodeIndex = 0 ) || start.pop() ) ) {
2213
2214								// When found, cache indexes on `parent` and break
2215								if ( node.nodeType === 1 && ++diff && node === elem ) {
2216									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
2217									break;
2218								}
2219							}
2220
2221						} else {
2222
2223							// Use previously-cached element index if available
2224							if ( useCache ) {
2225
2226								// ...in a gzip-friendly way
2227								node = elem;
2228								outerCache = node[ expando ] || ( node[ expando ] = {} );
2229
2230								// Support: IE <9 only
2231								// Defend against cloned attroperties (jQuery gh-1709)
2232								uniqueCache = outerCache[ node.uniqueID ] ||
2233									( outerCache[ node.uniqueID ] = {} );
2234
2235								cache = uniqueCache[ type ] || [];
2236								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
2237								diff = nodeIndex;
2238							}
2239
2240							// xml :nth-child(...)
2241							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
2242							if ( diff === false ) {
2243
2244								// Use the same loop as above to seek `elem` from the start
2245								while ( ( node = ++nodeIndex && node && node[ dir ] ||
2246									( diff = nodeIndex = 0 ) || start.pop() ) ) {
2247
2248									if ( ( ofType ?
2249										node.nodeName.toLowerCase() === name :
2250										node.nodeType === 1 ) &&
2251										++diff ) {
2252
2253										// Cache the index of each encountered element
2254										if ( useCache ) {
2255											outerCache = node[ expando ] ||
2256												( node[ expando ] = {} );
2257
2258											// Support: IE <9 only
2259											// Defend against cloned attroperties (jQuery gh-1709)
2260											uniqueCache = outerCache[ node.uniqueID ] ||
2261												( outerCache[ node.uniqueID ] = {} );
2262
2263											uniqueCache[ type ] = [ dirruns, diff ];
2264										}
2265
2266										if ( node === elem ) {
2267											break;
2268										}
2269									}
2270								}
2271							}
2272						}
2273
2274						// Incorporate the offset, then check against cycle size
2275						diff -= last;
2276						return diff === first || ( diff % first === 0 && diff / first >= 0 );
2277					}
2278				};
2279		},
2280
2281		"PSEUDO": function( pseudo, argument ) {
2282
2283			// pseudo-class names are case-insensitive
2284			// http://www.w3.org/TR/selectors/#pseudo-classes
2285			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
2286			// Remember that setFilters inherits from pseudos
2287			var args,
2288				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
2289					Sizzle.error( "unsupported pseudo: " + pseudo );
2290
2291			// The user may use createPseudo to indicate that
2292			// arguments are needed to create the filter function
2293			// just as Sizzle does
2294			if ( fn[ expando ] ) {
2295				return fn( argument );
2296			}
2297
2298			// But maintain support for old signatures
2299			if ( fn.length > 1 ) {
2300				args = [ pseudo, pseudo, "", argument ];
2301				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
2302					markFunction( function( seed, matches ) {
2303						var idx,
2304							matched = fn( seed, argument ),
2305							i = matched.length;
2306						while ( i-- ) {
2307							idx = indexOf( seed, matched[ i ] );
2308							seed[ idx ] = !( matches[ idx ] = matched[ i ] );
2309						}
2310					} ) :
2311					function( elem ) {
2312						return fn( elem, 0, args );
2313					};
2314			}
2315
2316			return fn;
2317		}
2318	},
2319
2320	pseudos: {
2321
2322		// Potentially complex pseudos
2323		"not": markFunction( function( selector ) {
2324
2325			// Trim the selector passed to compile
2326			// to avoid treating leading and trailing
2327			// spaces as combinators
2328			var input = [],
2329				results = [],
2330				matcher = compile( selector.replace( rtrim, "$1" ) );
2331
2332			return matcher[ expando ] ?
2333				markFunction( function( seed, matches, _context, xml ) {
2334					var elem,
2335						unmatched = matcher( seed, null, xml, [] ),
2336						i = seed.length;
2337
2338					// Match elements unmatched by `matcher`
2339					while ( i-- ) {
2340						if ( ( elem = unmatched[ i ] ) ) {
2341							seed[ i ] = !( matches[ i ] = elem );
2342						}
2343					}
2344				} ) :
2345				function( elem, _context, xml ) {
2346					input[ 0 ] = elem;
2347					matcher( input, null, xml, results );
2348
2349					// Don't keep the element (issue #299)
2350					input[ 0 ] = null;
2351					return !results.pop();
2352				};
2353		} ),
2354
2355		"has": markFunction( function( selector ) {
2356			return function( elem ) {
2357				return Sizzle( selector, elem ).length > 0;
2358			};
2359		} ),
2360
2361		"contains": markFunction( function( text ) {
2362			text = text.replace( runescape, funescape );
2363			return function( elem ) {
2364				return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
2365			};
2366		} ),
2367
2368		// "Whether an element is represented by a :lang() selector
2369		// is based solely on the element's language value
2370		// being equal to the identifier C,
2371		// or beginning with the identifier C immediately followed by "-".
2372		// The matching of C against the element's language value is performed case-insensitively.
2373		// The identifier C does not have to be a valid language name."
2374		// http://www.w3.org/TR/selectors/#lang-pseudo
2375		"lang": markFunction( function( lang ) {
2376
2377			// lang value must be a valid identifier
2378			if ( !ridentifier.test( lang || "" ) ) {
2379				Sizzle.error( "unsupported lang: " + lang );
2380			}
2381			lang = lang.replace( runescape, funescape ).toLowerCase();
2382			return function( elem ) {
2383				var elemLang;
2384				do {
2385					if ( ( elemLang = documentIsHTML ?
2386						elem.lang :
2387						elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {
2388
2389						elemLang = elemLang.toLowerCase();
2390						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
2391					}
2392				} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
2393				return false;
2394			};
2395		} ),
2396
2397		// Miscellaneous
2398		"target": function( elem ) {
2399			var hash = window.location && window.location.hash;
2400			return hash && hash.slice( 1 ) === elem.id;
2401		},
2402
2403		"root": function( elem ) {
2404			return elem === docElem;
2405		},
2406
2407		"focus": function( elem ) {
2408			return elem === document.activeElement &&
2409				( !document.hasFocus || document.hasFocus() ) &&
2410				!!( elem.type || elem.href || ~elem.tabIndex );
2411		},
2412
2413		// Boolean properties
2414		"enabled": createDisabledPseudo( false ),
2415		"disabled": createDisabledPseudo( true ),
2416
2417		"checked": function( elem ) {
2418
2419			// In CSS3, :checked should return both checked and selected elements
2420			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
2421			var nodeName = elem.nodeName.toLowerCase();
2422			return ( nodeName === "input" && !!elem.checked ) ||
2423				( nodeName === "option" && !!elem.selected );
2424		},
2425
2426		"selected": function( elem ) {
2427
2428			// Accessing this property makes selected-by-default
2429			// options in Safari work properly
2430			if ( elem.parentNode ) {
2431				// eslint-disable-next-line no-unused-expressions
2432				elem.parentNode.selectedIndex;
2433			}
2434
2435			return elem.selected === true;
2436		},
2437
2438		// Contents
2439		"empty": function( elem ) {
2440
2441			// http://www.w3.org/TR/selectors/#empty-pseudo
2442			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
2443			//   but not by others (comment: 8; processing instruction: 7; etc.)
2444			// nodeType < 6 works because attributes (2) do not appear as children
2445			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
2446				if ( elem.nodeType < 6 ) {
2447					return false;
2448				}
2449			}
2450			return true;
2451		},
2452
2453		"parent": function( elem ) {
2454			return !Expr.pseudos[ "empty" ]( elem );
2455		},
2456
2457		// Element/input types
2458		"header": function( elem ) {
2459			return rheader.test( elem.nodeName );
2460		},
2461
2462		"input": function( elem ) {
2463			return rinputs.test( elem.nodeName );
2464		},
2465
2466		"button": function( elem ) {
2467			var name = elem.nodeName.toLowerCase();
2468			return name === "input" && elem.type === "button" || name === "button";
2469		},
2470
2471		"text": function( elem ) {
2472			var attr;
2473			return elem.nodeName.toLowerCase() === "input" &&
2474				elem.type === "text" &&
2475
2476				// Support: IE<8
2477				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
2478				( ( attr = elem.getAttribute( "type" ) ) == null ||
2479					attr.toLowerCase() === "text" );
2480		},
2481
2482		// Position-in-collection
2483		"first": createPositionalPseudo( function() {
2484			return [ 0 ];
2485		} ),
2486
2487		"last": createPositionalPseudo( function( _matchIndexes, length ) {
2488			return [ length - 1 ];
2489		} ),
2490
2491		"eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
2492			return [ argument < 0 ? argument + length : argument ];
2493		} ),
2494
2495		"even": createPositionalPseudo( function( matchIndexes, length ) {
2496			var i = 0;
2497			for ( ; i < length; i += 2 ) {
2498				matchIndexes.push( i );
2499			}
2500			return matchIndexes;
2501		} ),
2502
2503		"odd": createPositionalPseudo( function( matchIndexes, length ) {
2504			var i = 1;
2505			for ( ; i < length; i += 2 ) {
2506				matchIndexes.push( i );
2507			}
2508			return matchIndexes;
2509		} ),
2510
2511		"lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
2512			var i = argument < 0 ?
2513				argument + length :
2514				argument > length ?
2515					length :
2516					argument;
2517			for ( ; --i >= 0; ) {
2518				matchIndexes.push( i );
2519			}
2520			return matchIndexes;
2521		} ),
2522
2523		"gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
2524			var i = argument < 0 ? argument + length : argument;
2525			for ( ; ++i < length; ) {
2526				matchIndexes.push( i );
2527			}
2528			return matchIndexes;
2529		} )
2530	}
2531};
2532
2533Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];
2534
2535// Add button/input type pseudos
2536for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
2537	Expr.pseudos[ i ] = createInputPseudo( i );
2538}
2539for ( i in { submit: true, reset: true } ) {
2540	Expr.pseudos[ i ] = createButtonPseudo( i );
2541}
2542
2543// Easy API for creating new setFilters
2544function setFilters() {}
2545setFilters.prototype = Expr.filters = Expr.pseudos;
2546Expr.setFilters = new setFilters();
2547
2548tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
2549	var matched, match, tokens, type,
2550		soFar, groups, preFilters,
2551		cached = tokenCache[ selector + " " ];
2552
2553	if ( cached ) {
2554		return parseOnly ? 0 : cached.slice( 0 );
2555	}
2556
2557	soFar = selector;
2558	groups = [];
2559	preFilters = Expr.preFilter;
2560
2561	while ( soFar ) {
2562
2563		// Comma and first run
2564		if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
2565			if ( match ) {
2566
2567				// Don't consume trailing commas as valid
2568				soFar = soFar.slice( match[ 0 ].length ) || soFar;
2569			}
2570			groups.push( ( tokens = [] ) );
2571		}
2572
2573		matched = false;
2574
2575		// Combinators
2576		if ( ( match = rcombinators.exec( soFar ) ) ) {
2577			matched = match.shift();
2578			tokens.push( {
2579				value: matched,
2580
2581				// Cast descendant combinators to space
2582				type: match[ 0 ].replace( rtrim, " " )
2583			} );
2584			soFar = soFar.slice( matched.length );
2585		}
2586
2587		// Filters
2588		for ( type in Expr.filter ) {
2589			if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
2590				( match = preFilters[ type ]( match ) ) ) ) {
2591				matched = match.shift();
2592				tokens.push( {
2593					value: matched,
2594					type: type,
2595					matches: match
2596				} );
2597				soFar = soFar.slice( matched.length );
2598			}
2599		}
2600
2601		if ( !matched ) {
2602			break;
2603		}
2604	}
2605
2606	// Return the length of the invalid excess
2607	// if we're just parsing
2608	// Otherwise, throw an error or return tokens
2609	return parseOnly ?
2610		soFar.length :
2611		soFar ?
2612			Sizzle.error( selector ) :
2613
2614			// Cache the tokens
2615			tokenCache( selector, groups ).slice( 0 );
2616};
2617
2618function toSelector( tokens ) {
2619	var i = 0,
2620		len = tokens.length,
2621		selector = "";
2622	for ( ; i < len; i++ ) {
2623		selector += tokens[ i ].value;
2624	}
2625	return selector;
2626}
2627
2628function addCombinator( matcher, combinator, base ) {
2629	var dir = combinator.dir,
2630		skip = combinator.next,
2631		key = skip || dir,
2632		checkNonElements = base && key === "parentNode",
2633		doneName = done++;
2634
2635	return combinator.first ?
2636
2637		// Check against closest ancestor/preceding element
2638		function( elem, context, xml ) {
2639			while ( ( elem = elem[ dir ] ) ) {
2640				if ( elem.nodeType === 1 || checkNonElements ) {
2641					return matcher( elem, context, xml );
2642				}
2643			}
2644			return false;
2645		} :
2646
2647		// Check against all ancestor/preceding elements
2648		function( elem, context, xml ) {
2649			var oldCache, uniqueCache, outerCache,
2650				newCache = [ dirruns, doneName ];
2651
2652			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
2653			if ( xml ) {
2654				while ( ( elem = elem[ dir ] ) ) {
2655					if ( elem.nodeType === 1 || checkNonElements ) {
2656						if ( matcher( elem, context, xml ) ) {
2657							return true;
2658						}
2659					}
2660				}
2661			} else {
2662				while ( ( elem = elem[ dir ] ) ) {
2663					if ( elem.nodeType === 1 || checkNonElements ) {
2664						outerCache = elem[ expando ] || ( elem[ expando ] = {} );
2665
2666						// Support: IE <9 only
2667						// Defend against cloned attroperties (jQuery gh-1709)
2668						uniqueCache = outerCache[ elem.uniqueID ] ||
2669							( outerCache[ elem.uniqueID ] = {} );
2670
2671						if ( skip && skip === elem.nodeName.toLowerCase() ) {
2672							elem = elem[ dir ] || elem;
2673						} else if ( ( oldCache = uniqueCache[ key ] ) &&
2674							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
2675
2676							// Assign to newCache so results back-propagate to previous elements
2677							return ( newCache[ 2 ] = oldCache[ 2 ] );
2678						} else {
2679
2680							// Reuse newcache so results back-propagate to previous elements
2681							uniqueCache[ key ] = newCache;
2682
2683							// A match means we're done; a fail means we have to keep checking
2684							if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
2685								return true;
2686							}
2687						}
2688					}
2689				}
2690			}
2691			return false;
2692		};
2693}
2694
2695function elementMatcher( matchers ) {
2696	return matchers.length > 1 ?
2697		function( elem, context, xml ) {
2698			var i = matchers.length;
2699			while ( i-- ) {
2700				if ( !matchers[ i ]( elem, context, xml ) ) {
2701					return false;
2702				}
2703			}
2704			return true;
2705		} :
2706		matchers[ 0 ];
2707}
2708
2709function multipleContexts( selector, contexts, results ) {
2710	var i = 0,
2711		len = contexts.length;
2712	for ( ; i < len; i++ ) {
2713		Sizzle( selector, contexts[ i ], results );
2714	}
2715	return results;
2716}
2717
2718function condense( unmatched, map, filter, context, xml ) {
2719	var elem,
2720		newUnmatched = [],
2721		i = 0,
2722		len = unmatched.length,
2723		mapped = map != null;
2724
2725	for ( ; i < len; i++ ) {
2726		if ( ( elem = unmatched[ i ] ) ) {
2727			if ( !filter || filter( elem, context, xml ) ) {
2728				newUnmatched.push( elem );
2729				if ( mapped ) {
2730					map.push( i );
2731				}
2732			}
2733		}
2734	}
2735
2736	return newUnmatched;
2737}
2738
2739function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
2740	if ( postFilter && !postFilter[ expando ] ) {
2741		postFilter = setMatcher( postFilter );
2742	}
2743	if ( postFinder && !postFinder[ expando ] ) {
2744		postFinder = setMatcher( postFinder, postSelector );
2745	}
2746	return markFunction( function( seed, results, context, xml ) {
2747		var temp, i, elem,
2748			preMap = [],
2749			postMap = [],
2750			preexisting = results.length,
2751
2752			// Get initial elements from seed or context
2753			elems = seed || multipleContexts(
2754				selector || "*",
2755				context.nodeType ? [ context ] : context,
2756				[]
2757			),
2758
2759			// Prefilter to get matcher input, preserving a map for seed-results synchronization
2760			matcherIn = preFilter && ( seed || !selector ) ?
2761				condense( elems, preMap, preFilter, context, xml ) :
2762				elems,
2763
2764			matcherOut = matcher ?
2765
2766				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
2767				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
2768
2769					// ...intermediate processing is necessary
2770					[] :
2771
2772					// ...otherwise use results directly
2773					results :
2774				matcherIn;
2775
2776		// Find primary matches
2777		if ( matcher ) {
2778			matcher( matcherIn, matcherOut, context, xml );
2779		}
2780
2781		// Apply postFilter
2782		if ( postFilter ) {
2783			temp = condense( matcherOut, postMap );
2784			postFilter( temp, [], context, xml );
2785
2786			// Un-match failing elements by moving them back to matcherIn
2787			i = temp.length;
2788			while ( i-- ) {
2789				if ( ( elem = temp[ i ] ) ) {
2790					matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
2791				}
2792			}
2793		}
2794
2795		if ( seed ) {
2796			if ( postFinder || preFilter ) {
2797				if ( postFinder ) {
2798
2799					// Get the final matcherOut by condensing this intermediate into postFinder contexts
2800					temp = [];
2801					i = matcherOut.length;
2802					while ( i-- ) {
2803						if ( ( elem = matcherOut[ i ] ) ) {
2804
2805							// Restore matcherIn since elem is not yet a final match
2806							temp.push( ( matcherIn[ i ] = elem ) );
2807						}
2808					}
2809					postFinder( null, ( matcherOut = [] ), temp, xml );
2810				}
2811
2812				// Move matched elements from seed to results to keep them synchronized
2813				i = matcherOut.length;
2814				while ( i-- ) {
2815					if ( ( elem = matcherOut[ i ] ) &&
2816						( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {
2817
2818						seed[ temp ] = !( results[ temp ] = elem );
2819					}
2820				}
2821			}
2822
2823		// Add elements to results, through postFinder if defined
2824		} else {
2825			matcherOut = condense(
2826				matcherOut === results ?
2827					matcherOut.splice( preexisting, matcherOut.length ) :
2828					matcherOut
2829			);
2830			if ( postFinder ) {
2831				postFinder( null, results, matcherOut, xml );
2832			} else {
2833				push.apply( results, matcherOut );
2834			}
2835		}
2836	} );
2837}
2838
2839function matcherFromTokens( tokens ) {
2840	var checkContext, matcher, j,
2841		len = tokens.length,
2842		leadingRelative = Expr.relative[ tokens[ 0 ].type ],
2843		implicitRelative = leadingRelative || Expr.relative[ " " ],
2844		i = leadingRelative ? 1 : 0,
2845
2846		// The foundational matcher ensures that elements are reachable from top-level context(s)
2847		matchContext = addCombinator( function( elem ) {
2848			return elem === checkContext;
2849		}, implicitRelative, true ),
2850		matchAnyContext = addCombinator( function( elem ) {
2851			return indexOf( checkContext, elem ) > -1;
2852		}, implicitRelative, true ),
2853		matchers = [ function( elem, context, xml ) {
2854			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
2855				( checkContext = context ).nodeType ?
2856					matchContext( elem, context, xml ) :
2857					matchAnyContext( elem, context, xml ) );
2858
2859			// Avoid hanging onto element (issue #299)
2860			checkContext = null;
2861			return ret;
2862		} ];
2863
2864	for ( ; i < len; i++ ) {
2865		if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
2866			matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
2867		} else {
2868			matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );
2869
2870			// Return special upon seeing a positional matcher
2871			if ( matcher[ expando ] ) {
2872
2873				// Find the next relative operator (if any) for proper handling
2874				j = ++i;
2875				for ( ; j < len; j++ ) {
2876					if ( Expr.relative[ tokens[ j ].type ] ) {
2877						break;
2878					}
2879				}
2880				return setMatcher(
2881					i > 1 && elementMatcher( matchers ),
2882					i > 1 && toSelector(
2883
2884					// If the preceding token was a descendant combinator, insert an implicit any-element `*`
2885					tokens
2886						.slice( 0, i - 1 )
2887						.concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
2888					).replace( rtrim, "$1" ),
2889					matcher,
2890					i < j && matcherFromTokens( tokens.slice( i, j ) ),
2891					j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
2892					j < len && toSelector( tokens )
2893				);
2894			}
2895			matchers.push( matcher );
2896		}
2897	}
2898
2899	return elementMatcher( matchers );
2900}
2901
2902function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
2903	var bySet = setMatchers.length > 0,
2904		byElement = elementMatchers.length > 0,
2905		superMatcher = function( seed, context, xml, results, outermost ) {
2906			var elem, j, matcher,
2907				matchedCount = 0,
2908				i = "0",
2909				unmatched = seed && [],
2910				setMatched = [],
2911				contextBackup = outermostContext,
2912
2913				// We must always have either seed elements or outermost context
2914				elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),
2915
2916				// Use integer dirruns iff this is the outermost matcher
2917				dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
2918				len = elems.length;
2919
2920			if ( outermost ) {
2921
2922				// Support: IE 11+, Edge 17 - 18+
2923				// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
2924				// two documents; shallow comparisons work.
2925				// eslint-disable-next-line eqeqeq
2926				outermostContext = context == document || context || outermost;
2927			}
2928
2929			// Add elements passing elementMatchers directly to results
2930			// Support: IE<9, Safari
2931			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
2932			for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
2933				if ( byElement && elem ) {
2934					j = 0;
2935
2936					// Support: IE 11+, Edge 17 - 18+
2937					// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
2938					// two documents; shallow comparisons work.
2939					// eslint-disable-next-line eqeqeq
2940					if ( !context && elem.ownerDocument != document ) {
2941						setDocument( elem );
2942						xml = !documentIsHTML;
2943					}
2944					while ( ( matcher = elementMatchers[ j++ ] ) ) {
2945						if ( matcher( elem, context || document, xml ) ) {
2946							results.push( elem );
2947							break;
2948						}
2949					}
2950					if ( outermost ) {
2951						dirruns = dirrunsUnique;
2952					}
2953				}
2954
2955				// Track unmatched elements for set filters
2956				if ( bySet ) {
2957
2958					// They will have gone through all possible matchers
2959					if ( ( elem = !matcher && elem ) ) {
2960						matchedCount--;
2961					}
2962
2963					// Lengthen the array for every element, matched or not
2964					if ( seed ) {
2965						unmatched.push( elem );
2966					}
2967				}
2968			}
2969
2970			// `i` is now the count of elements visited above, and adding it to `matchedCount`
2971			// makes the latter nonnegative.
2972			matchedCount += i;
2973
2974			// Apply set filters to unmatched elements
2975			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
2976			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
2977			// no element matchers and no seed.
2978			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
2979			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
2980			// numerically zero.
2981			if ( bySet && i !== matchedCount ) {
2982				j = 0;
2983				while ( ( matcher = setMatchers[ j++ ] ) ) {
2984					matcher( unmatched, setMatched, context, xml );
2985				}
2986
2987				if ( seed ) {
2988
2989					// Reintegrate element matches to eliminate the need for sorting
2990					if ( matchedCount > 0 ) {
2991						while ( i-- ) {
2992							if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
2993								setMatched[ i ] = pop.call( results );
2994							}
2995						}
2996					}
2997
2998					// Discard index placeholder values to get only actual matches
2999					setMatched = condense( setMatched );
3000				}
3001
3002				// Add matches to results
3003				push.apply( results, setMatched );
3004
3005				// Seedless set matches succeeding multiple successful matchers stipulate sorting
3006				if ( outermost && !seed && setMatched.length > 0 &&
3007					( matchedCount + setMatchers.length ) > 1 ) {
3008
3009					Sizzle.uniqueSort( results );
3010				}
3011			}
3012
3013			// Override manipulation of globals by nested matchers
3014			if ( outermost ) {
3015				dirruns = dirrunsUnique;
3016				outermostContext = contextBackup;
3017			}
3018
3019			return unmatched;
3020		};
3021
3022	return bySet ?
3023		markFunction( superMatcher ) :
3024		superMatcher;
3025}
3026
3027compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
3028	var i,
3029		setMatchers = [],
3030		elementMatchers = [],
3031		cached = compilerCache[ selector + " " ];
3032
3033	if ( !cached ) {
3034
3035		// Generate a function of recursive functions that can be used to check each element
3036		if ( !match ) {
3037			match = tokenize( selector );
3038		}
3039		i = match.length;
3040		while ( i-- ) {
3041			cached = matcherFromTokens( match[ i ] );
3042			if ( cached[ expando ] ) {
3043				setMatchers.push( cached );
3044			} else {
3045				elementMatchers.push( cached );
3046			}
3047		}
3048
3049		// Cache the compiled function
3050		cached = compilerCache(
3051			selector,
3052			matcherFromGroupMatchers( elementMatchers, setMatchers )
3053		);
3054
3055		// Save selector and tokenization
3056		cached.selector = selector;
3057	}
3058	return cached;
3059};
3060
3061/**
3062 * A low-level selection function that works with Sizzle's compiled
3063 *  selector functions
3064 * @param {String|Function} selector A selector or a pre-compiled
3065 *  selector function built with Sizzle.compile
3066 * @param {Element} context
3067 * @param {Array} [results]
3068 * @param {Array} [seed] A set of elements to match against
3069 */
3070select = Sizzle.select = function( selector, context, results, seed ) {
3071	var i, tokens, token, type, find,
3072		compiled = typeof selector === "function" && selector,
3073		match = !seed && tokenize( ( selector = compiled.selector || selector ) );
3074
3075	results = results || [];
3076
3077	// Try to minimize operations if there is only one selector in the list and no seed
3078	// (the latter of which guarantees us context)
3079	if ( match.length === 1 ) {
3080
3081		// Reduce context if the leading compound selector is an ID
3082		tokens = match[ 0 ] = match[ 0 ].slice( 0 );
3083		if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
3084			context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {
3085
3086			context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
3087				.replace( runescape, funescape ), context ) || [] )[ 0 ];
3088			if ( !context ) {
3089				return results;
3090
3091			// Precompiled matchers will still verify ancestry, so step up a level
3092			} else if ( compiled ) {
3093				context = context.parentNode;
3094			}
3095
3096			selector = selector.slice( tokens.shift().value.length );
3097		}
3098
3099		// Fetch a seed set for right-to-left matching
3100		i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
3101		while ( i-- ) {
3102			token = tokens[ i ];
3103
3104			// Abort if we hit a combinator
3105			if ( Expr.relative[ ( type = token.type ) ] ) {
3106				break;
3107			}
3108			if ( ( find = Expr.find[ type ] ) ) {
3109
3110				// Search, expanding context for leading sibling combinators
3111				if ( ( seed = find(
3112					token.matches[ 0 ].replace( runescape, funescape ),
3113					rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
3114						context
3115				) ) ) {
3116
3117					// If seed is empty or no tokens remain, we can return early
3118					tokens.splice( i, 1 );
3119					selector = seed.length && toSelector( tokens );
3120					if ( !selector ) {
3121						push.apply( results, seed );
3122						return results;
3123					}
3124
3125					break;
3126				}
3127			}
3128		}
3129	}
3130
3131	// Compile and execute a filtering function if one is not provided
3132	// Provide `match` to avoid retokenization if we modified the selector above
3133	( compiled || compile( selector, match ) )(
3134		seed,
3135		context,
3136		!documentIsHTML,
3137		results,
3138		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
3139	);
3140	return results;
3141};
3142
3143// One-time assignments
3144
3145// Sort stability
3146support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;
3147
3148// Support: Chrome 14-35+
3149// Always assume duplicates if they aren't passed to the comparison function
3150support.detectDuplicates = !!hasDuplicate;
3151
3152// Initialize against the default document
3153setDocument();
3154
3155// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
3156// Detached nodes confoundingly follow *each other*
3157support.sortDetached = assert( function( el ) {
3158
3159	// Should return 1, but returns 4 (following)
3160	return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
3161} );
3162
3163// Support: IE<8
3164// Prevent attribute/property "interpolation"
3165// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
3166if ( !assert( function( el ) {
3167	el.innerHTML = "<a href='#'></a>";
3168	return el.firstChild.getAttribute( "href" ) === "#";
3169} ) ) {
3170	addHandle( "type|href|height|width", function( elem, name, isXML ) {
3171		if ( !isXML ) {
3172			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
3173		}
3174	} );
3175}
3176
3177// Support: IE<9
3178// Use defaultValue in place of getAttribute("value")
3179if ( !support.attributes || !assert( function( el ) {
3180	el.innerHTML = "<input/>";
3181	el.firstChild.setAttribute( "value", "" );
3182	return el.firstChild.getAttribute( "value" ) === "";
3183} ) ) {
3184	addHandle( "value", function( elem, _name, isXML ) {
3185		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
3186			return elem.defaultValue;
3187		}
3188	} );
3189}
3190
3191// Support: IE<9
3192// Use getAttributeNode to fetch booleans when getAttribute lies
3193if ( !assert( function( el ) {
3194	return el.getAttribute( "disabled" ) == null;
3195} ) ) {
3196	addHandle( booleans, function( elem, name, isXML ) {
3197		var val;
3198		if ( !isXML ) {
3199			return elem[ name ] === true ? name.toLowerCase() :
3200				( val = elem.getAttributeNode( name ) ) && val.specified ?
3201					val.value :
3202					null;
3203		}
3204	} );
3205}
3206
3207return Sizzle;
3208
3209} )( window );
3210
3211
3212
3213jQuery.find = Sizzle;
3214jQuery.expr = Sizzle.selectors;
3215
3216// Deprecated
3217jQuery.expr[ ":" ] = jQuery.expr.pseudos;
3218jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
3219jQuery.text = Sizzle.getText;
3220jQuery.isXMLDoc = Sizzle.isXML;
3221jQuery.contains = Sizzle.contains;
3222jQuery.escapeSelector = Sizzle.escape;
3223
3224
3225
3226
3227var dir = function( elem, dir, until ) {
3228	var matched = [],
3229		truncate = until !== undefined;
3230
3231	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
3232		if ( elem.nodeType === 1 ) {
3233			if ( truncate && jQuery( elem ).is( until ) ) {
3234				break;
3235			}
3236			matched.push( elem );
3237		}
3238	}
3239	return matched;
3240};
3241
3242
3243var siblings = function( n, elem ) {
3244	var matched = [];
3245
3246	for ( ; n; n = n.nextSibling ) {
3247		if ( n.nodeType === 1 && n !== elem ) {
3248			matched.push( n );
3249		}
3250	}
3251
3252	return matched;
3253};
3254
3255
3256var rneedsContext = jQuery.expr.match.needsContext;
3257
3258
3259
3260function nodeName( elem, name ) {
3261
3262	return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
3263
3264}
3265var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
3266
3267
3268
3269// Implement the identical functionality for filter and not
3270function winnow( elements, qualifier, not ) {
3271	if ( isFunction( qualifier ) ) {
3272		return jQuery.grep( elements, function( elem, i ) {
3273			return !!qualifier.call( elem, i, elem ) !== not;
3274		} );
3275	}
3276
3277	// Single element
3278	if ( qualifier.nodeType ) {
3279		return jQuery.grep( elements, function( elem ) {
3280			return ( elem === qualifier ) !== not;
3281		} );
3282	}
3283
3284	// Arraylike of elements (jQuery, arguments, Array)
3285	if ( typeof qualifier !== "string" ) {
3286		return jQuery.grep( elements, function( elem ) {
3287			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
3288		} );
3289	}
3290
3291	// Filtered directly for both simple and complex selectors
3292	return jQuery.filter( qualifier, elements, not );
3293}
3294
3295jQuery.filter = function( expr, elems, not ) {
3296	var elem = elems[ 0 ];
3297
3298	if ( not ) {
3299		expr = ":not(" + expr + ")";
3300	}
3301
3302	if ( elems.length === 1 && elem.nodeType === 1 ) {
3303		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
3304	}
3305
3306	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
3307		return elem.nodeType === 1;
3308	} ) );
3309};
3310
3311jQuery.fn.extend( {
3312	find: function( selector ) {
3313		var i, ret,
3314			len = this.length,
3315			self = this;
3316
3317		if ( typeof selector !== "string" ) {
3318			return this.pushStack( jQuery( selector ).filter( function() {
3319				for ( i = 0; i < len; i++ ) {
3320					if ( jQuery.contains( self[ i ], this ) ) {
3321						return true;
3322					}
3323				}
3324			} ) );
3325		}
3326
3327		ret = this.pushStack( [] );
3328
3329		for ( i = 0; i < len; i++ ) {
3330