addEvent(window,"load",convertTrees);
function addEvent(o,e,f){if(o.addEventListener){o.addEventListener(e,f,true);return true;}else if(o.attachEvent){return o.attachEvent("on"+e,f);}else{return false;}}
function setDefault(name,val){if(typeof(window[name])=="undefined" || window[name]==null){window[name]=val;}}
function expandTree(treeId){var ul = document.getElementById(treeId);if(ul == null){return false;}expandCollapseList(ul,nodeOpenClass);}
function collapseTree(treeId){var ul = document.getElementById(treeId);if(ul == null){return false;}expandCollapseList(ul,nodeClosedClass);}
function expandToItem(treeId,itemId){var ul = document.getElementById(treeId);if(ul == null){return false;}var ret = expandCollapseList(ul,nodeOpenClass,itemId);if(ret){var o = document.getElementById(itemId);if(o.scrollIntoView){o.scrollIntoView(false);}}}
function expandCollapseList(ul,cName,itemId){if(!ul.childNodes || ul.childNodes.length==0){return false;}for(var itemi=0;itemi<ul.childNodes.length;itemi++){var item = ul.childNodes[itemi];if(itemId!=null && item.id==itemId){return true;}if(item.nodeName == "LI"){var subLists = false;for(var sitemi=0;sitemi<item.childNodes.length;sitemi++){var sitem = item.childNodes[sitemi];if(sitem.nodeName=="UL"){subLists = true;var ret = expandCollapseList(sitem,cName,itemId);if(itemId!=null && ret){item.className=cName;return true;}}}if(subLists && itemId==null){item.className = cName;}}}}
function convertTrees(){setDefault("treeClass","mytree");setDefault("nodeClosedClass","liClosed");setDefault("nodeOpenClass","liOpen");setDefault("nodeBulletClass","liBullet");setDefault("nodeLinkClass","bullet");setDefault("preProcessTrees",true);if(preProcessTrees){if(!document.createElement){return;}uls = document.getElementsByTagName("ul");for(var uli=0;uli<uls.length;uli++){var ul=uls[uli];if(ul.nodeName=="UL" && ul.className==treeClass){processList(ul);}}}}
function processList(ul){if(!ul.childNodes || ul.childNodes.length==0){return;}for(var itemi=0;itemi<ul.childNodes.length;itemi++){var item = ul.childNodes[itemi];if(item.nodeName == "LI"){var subLists = false;for(var sitemi=0;sitemi<item.childNodes.length;sitemi++){var sitem = item.childNodes[sitemi];if(sitem.nodeName=="UL"){subLists = true;processList(sitem);}}var s= document.createElement("SPAN");var t= '\u00A0';s.className = nodeLinkClass;if(subLists){if(item.className==null || item.className==""){item.className = nodeClosedClass;}if(item.firstChild.nodeName=="#text"){t = t+item.firstChild.nodeValue;item.removeChild(item.firstChild);}s.onclick = function(){this.parentNode.className =(this.parentNode.className==nodeOpenClass) ? nodeClosedClass : nodeOpenClass;return false;}}else{item.className = nodeBulletClass;s.onclick = function(){return false;}}s.appendChild(document.createTextNode(t));item.insertBefore(s,item.firstChild);}}}
function getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}
function sendWithOpenCats(url) {
    var openNodes = getElementsByClassName('liOpen');
    var openCats = new String();
    if (openNodes && openNodes.length) {
        for (i = 0; i < openNodes.length; i++) {
            if (openCats.length > 0) {openCats = openCats + ','}
            openCats = openCats + openNodes[i].id;
        }
    }
    url = url + "?cats=" + openCats;
    location.replace(url);
    //window.location
}
function gup( name ) {
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}

function openOpenCats() {
    var catString = gup('cats');
    var elements = catString.split(",");
    for (el in elements) {
        //expandTree(elements[el];
        document.getElementById(elements[el]).className = 'liOpen';
    }
}
openOpenCats();