https://www.matl-bula.cz/shared/jquery.forms.popup.js

1!function(n){n.fn.showFormInLayer=function(){var o=n(this);if(o.length>1)return alert("showFormInLayer může být voláno jen na jediný element."),this;var t,e,i=function(){e=n("<div></div>").addClass("forms-popup-overlay").appendTo(document.body),t=n("<div></div>").addClass("forms-popup-container common-content").appendTo(document.body),e.hide().fadeIn(300,a),e.click(r),t.hide()},a=function(){t.fadeIn(300),window.setTimeout(d,50),o.show(),window.setTimeout(function(){o.animatoFullWidthInput()},50);var e=n("<span></span>");o.data("originalPosition",e),e.insertAfter(o),o.appendTo(t);var i=n("<a />").attr("title","X").attr("href","#").click(function(){return r(),!1}),a=n("<div></div>").addClass("close-popup").append(i);t.append(a),n(document.body).on("keyup.animatoForms",function(n){27==n.keyCode&&r()})},d=function(){if(t){var n=t.width()/2,o=t.height()/2,e=t.position();n>e.left&&(n=e.left),o>e.top-20&&(o=e.top-20,t.css("position","absolute")),t.css("margin-left",-n+"px"),t.css("margin-top",-o+"px")}},r=function(){if(o.data("formsInLayer",!1),e){var i=o.data("originalPosition");t.fadeOut(300,function(){i?(o.insertAfter(i).hide(),i.remove()):o.appendTo(document.body),t.remove(),e.fadeOut(300,function(){e.remove(),e=null})}),n(document.body).off("keyup.animatoForms")}};return o.data("formsInLayer")?(r(),this):(o.data("formsInLayer",!0),i(),this)}}(jQuery);