var ddtabmenu={
	disabletablinks: false, //Disable hyperlinks in 1st level tabs with sub contents (true or false)?
	snap2original: [true, 300], //Should tab revert back to default selected when mouse moves out of menu? ([true/false, delay_millisec]
	currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""),  
    selectedTab:'',
definemenu:function(tabid, dselected){
	this[tabid+"-menuitems"]=null
	this[tabid+"-dselected"]=-1
	//this.addEvent(window, function(){}, "load")
	ddtabmenu.init(tabid, dselected)
},

showsubmenu:function(tabid, targetitem){
   var menuitems=this[tabid+"-menuitems"]
  this.clearrevert2default(tabid)
  if(ddtabmenu.selectedTab==-1)
  ddtabmenu.hideflash();
  if(targetitem.className!="selected") 
   {
   for (i=0; i<menuitems.length; i++){
		menuitems[i].className=""
		if (typeof menuitems[i].hasSubContent!="undefined")
  	$('#'+menuitems[i].getAttribute("rel")).fadeOut(500)
	}
	targetitem.className="selected"
	if (typeof targetitem.hasSubContent!="undefined")
	$('#'+targetitem.getAttribute("rel")).fadeIn(500)
   }
	
},
showflash:function(){
  $('#gc0').css("visibility","visible");
	
},
hideflash:function(){
  $('#gc0').css("visibility","hidden");
},
isSelected:function(menuurl){
	var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
	return (ddtabmenu.currentpageurl==menuurl)
},

isContained:function(m, e){
	var e=window.event || e
	var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
	while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
	if (c==m)
		return true
	else
		return false
},

revert2default:function(outobj, tabid, e){
	if (!ddtabmenu.isContained(outobj, tabid, e)){
		window["hidetimer_"+tabid]=setTimeout(function(){
			ddtabmenu.showsubmenu(tabid, ddtabmenu[tabid+"-dselected"])
			if(ddtabmenu.selectedTab==-1)
			ddtabmenu.showflash();
		}, ddtabmenu.snap2original[1])
	}
},

clearrevert2default:function(tabid){
 if (typeof window["hidetimer_"+tabid]!="undefined")
		clearTimeout(window["hidetimer_"+tabid])
},

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 menuitems=document.getElementById(tabid).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 (ddtabmenu.disabletablinks)
				menuitems[x].onclick=function(){return false}
			if (ddtabmenu.snap2original[0]==true){
				var submenu=document.getElementById(menuitems[x].getAttribute("rel"))
				menuitems[x].onmouseout=function(e){ddtabmenu.revert2default(submenu, tabid, e)}
				submenu.onmouseover=function(){ddtabmenu.clearrevert2default(tabid)}
				submenu.onmouseout=function(e){ddtabmenu.revert2default(this, tabid, e)}
			}
		}
		else //for items without a submenu, add onMouseout effect
			menuitems[x].onmouseout=function(e){this.className=""; if (ddtabmenu.snap2original[0]==true) ddtabmenu.revert2default(this, tabid, e)}
		menuitems[x].onmouseover=function(){ddtabmenu.showsubmenu(tabid, this)}
		if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[x].href)){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
			var setalready=true
		}
		else if (parseInt(dselected)==x){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
		}
	}//for end 
	ddtabmenu.selectedTab= dselected;
	if(dselected==-1) 
	{
		ddtabmenu.showflash();
	}
 }    
}