1/* 2 * jQuery.appear 3 * http://code.google.com/p/jquery-appear/ 4 * 5 * Copyright (c) 2009 Michael Hixson 6 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php) 7*/ 8!function(a){a.fn.disappear=function(e,r){var p=a.extend({data:void 0},r);this.each(function(){var r=a(this);r.bind("disappear",e,p.data),e||r.trigger("disappear",p.data)})},a.fn.appear=function(e,r){var p=a.extend({data:void 0,one:!0},r);return this.each(function(){var r=a(this);if(r.appeared=!1,e){var t=a(window),n=function(){if(r.is(":visible")){var a=t.scrollLeft(),e=t.scrollTop(),n=r.offset(),i=n.left,o=n.top;o+r.height()>=e&&o<=e+t.height()&&i+r.width()>=a&&i<=a+t.width()?r.appeared||r.trigger("appear",p.data):(r.appeared&&r.trigger("disappear",p.data),r.appeared=!1)}else r.appeared=!1},i=function(){if(r.appeared=!0,p.one){t.unbind("scroll",n);var i=a.inArray(n,a.fn.appear.checks);i>=0&&a.fn.appear.checks.splice(i,1)}e.apply(this,arguments)};p.one?r.one("appear",p.data,i):r.bind("appear",p.data,i),t.scroll(n),a.fn.appear.checks.push(n),n()}else r.trigger("appear",p.data)})},a.extend(a.fn.appear,{checks:[],timeout:null,checkAll:function(){var e=a.fn.appear.checks.length;if(e>0)for(;e--;)a.fn.appear.checks[e]()},run:function(){a.fn.appear.timeout&&clearTimeout(a.fn.appear.timeout),a.fn.appear.timeout=setTimeout(a.fn.appear.checkAll,20)}}),a.each(["append","prepend","after","before","attr","removeAttr","addClass","removeClass","toggleClass","remove","css","show","hide"],function(e,r){var p=a.fn[r];p&&(a.fn[r]=function(){var e=p.apply(this,arguments);return a.fn.appear.run(),e})})}(jQuery);
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