/*
------------------------------------------------------------------------
MENU SCRIPT
------------------------------------------------------------------------

Updated:    January 7 2008

*/

var menuscript={
	disabletablinks: false, ////Disable hyperlinks in 1st level tabs with sub contents (true or false)?
	currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""), //get current page url (minus hostname, ie: http://www.quommunication.com/news)

definemenu:function(tabid, dselected){
	this[tabid+"-menuitems"]=null
	this.addEvent(window, function(){menuscript.init(tabid, dselected)}, "load")
},

showsubmenu:function(tabid, targetitem){
	var menuitems = this[tabid+"-menuitems"];
	for (var i=0; i<menuitems.length; i++) {
		menuitems[i].className = "";
		if (typeof menuitems[i].hasSubContent!="undefined") {
			var el = document.getElementById(menuitems[i].getAttribute("rel"));
			if (el) el.style.display = "none";
		}
	}
	
	targetitem.className = "current";
	
	if (typeof targetitem.hasSubContent!="undefined") {
		var el = document.getElementById(targetitem.getAttribute("rel"));
		if (el) el.style.display = "block";
	}
},

isSelected:function(menuurl){
	var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
	return (menuscript.currentpageurl==menuurl)
},

addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
},

	init: function(tabid, dselected) {
		var tabel = document.getElementById(tabid);
		var menuitems = tabel ? tabel.getElementsByTagName("a") : [];
		
		this[tabid+"-menuitems"] = menuitems;
		
		for (var x=0; x<menuitems.length; x++) {
			if (menuitems[x].getAttribute("rel")) {
				this[tabid+"-menuitems"][x].hasSubContent = true;
				if (menuscript.disabletablinks) {
					menuitems[x].onclick = function(){return false; };
				}
			} else {//for items without a submenu, add onMouseout effect
				menuitems[x].onmouseout = function(){this.className="";};
			}
				
			//menuitems[x].onmouseover = function(){menuscript.showsubmenu(tabid, this)};
			menuitems[x].onclick = function(){
				menuscript.showsubmenu(tabid, this);
				return false;
			};
			
			if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[x].href)) {
				menuscript.showsubmenu(tabid, menuitems[x]);
				var setalready = true;
			} else if (parseInt(dselected) == x) {
				menuscript.showsubmenu(tabid, menuitems[x]);
			}
		}
	}
};