APO-Epsilon/apo-website

//code.stephenmorley.org
var Dropdown=function(){function h(a){for(var b=!1,d=0;d<e.length;d++)e[d].isOpen&&(b=!0);if(b){for(a=a.target;null!=a;){if(/\bdropdown\b/.test(a.className))return;a=a.parentNode}f()}}function f(a){for(var b=0;b<e.length;b++)e[b]!=a&&e[b].close()}function g(a){"string"==typeof a&&(a=document.getElementById(a));e.push(new c(a))}function c(a){this.node=a;a.className+=" dropdownJavaScript";"addEventListener"in a?(a.addEventListener("mouseover",this.bind(this.handleMouseOver),!1),a.addEventListener("mouseout",this.bind(this.handleMouseOut),!1),a.addEventListener("click",this.bind(this.handleClick),!1)):(a.attachEvent("onmouseover",this.bind(this.handleMouseOver)),a.attachEvent("onmouseout",this.bind(this.handleMouseOut)),a.attachEvent("onclick",this.bind(this.handleClick)));"createTouch"in document&&a.addEventListener("touchstart",this.bind(this.handleClick),!1)}var e=[];c.prototype.isOpen=!1;c.prototype.timeout=null;c.prototype.bind=function(a){var b=this;return function(){a.apply(b,arguments)}};c.prototype.handleMouseOver=function(a,b){this.clearTimeout();var d="target"in a?a.target:a.srcElement;for(;"LI"!=d.nodeName&&d!=this.node;)d=d.parentNode;"LI"==d.nodeName&&(this.toOpen=d,this.timeout=window.setTimeout(this.bind(this.open),b?0:250))};c.prototype.handleMouseOut=function(){this.clearTimeout();this.timeout=window.setTimeout(this.bind(this.close),250)};c.prototype.handleClick=function(a){f(this);var b="target"in a?a.target:a.srcElement;for(;"LI"!=b.nodeName&&b!=this.node;)b=b.parentNode;"LI"==b.nodeName&&0<this.getChildrenByTagName(b,"UL").length&&!/\bdropdownOpen\b/.test(b.className)&&(this.handleMouseOver(a,!0),"preventDefault"in a?a.preventDefault():a.returnValue=!1)};c.prototype.clearTimeout=function(){this.timeout&&(window.clearTimeout(this.timeout),this.timeout=null)};c.prototype.open=function(){this.isOpen=!0;for(var a=this.getChildrenByTagName(this.toOpen.parentNode,"LI"),b=0;b<a.length;b++){var d=this.getChildrenByTagName(a[b],"UL");if(0<d.length)if(a[b]!=this.toOpen)a[b].className=a[b].className.replace(/\bdropdownOpen\b/g,""),this.close(a[b]);else if(!/\bdropdownOpen\b/.test(a[b].className)){a[b].className+=" dropdownOpen";for(var c=0,e=d[0];e;)c+=e.offsetLeft,e=e.offsetParent;right=c+d[0].offsetWidth;0>c&&(a[b].className+=" dropdownLeftToRight");right>document.body.clientWidth&&(a[b].className+=" dropdownRightToLeft")}}};c.prototype.close=function(a){a||(this.isOpen=!1,a=this.node);a=a.getElementsByTagName("li");for(var b=0;b<a.length;b++)a[b].className=a[b].className.replace(/\bdropdownOpen\b/g,"")};c.prototype.getChildrenByTagName=function(a,b){for(var d=[],c=0;c<a.childNodes.length;c++)a.childNodes[c].nodeName==b&&d.push(a.childNodes[c]);return d};return{initialise:function(){"createTouch"in document&&document.body.addEventListener("touchstart",h,!1);for(var a=document.querySelectorAll("ul.dropdown"),b=0;b<a.length;b++)g(a[b])},applyTo:g}}();