//DD Tab Menu- Script rewritten April 27th, 07: http://www.dynamicdrive.com



//**Updated Feb 23rd, 08): Adds ability for menu to revert back to default selected tab when mouse moves out of menu







//Only 2 configuration variables below:







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(/^\//, ""), //get current page url (minus hostname, ie: http://www.dynamicdrive.com/)







definemenu:function(tabid, dselected){



	this[tabid+"-menuitems"]=null



	this[tabid+"-dselected"]=-1



	this.addEvent(window, function(){ddtabmenu.init(tabid, dselected)}, "load")



},







showsubmenu:function(tabid, targetitem){



	var menuitems=this[tabid+"-menuitems"]



	this.clearrevert2default(tabid)



 for (i=0; i<menuitems.length; i++){



		menuitems[i].className=""



		if (typeof menuitems[i].hasSubContent!="undefined")



			document.getElementById(menuitems[i].getAttribute("rel")).style.display="none"



	}



	targetitem.className="current"



	if (typeof targetitem.hasSubContent!="undefined")



		document.getElementById(targetitem.getAttribute("rel")).style.display="block"



},







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"])



		}, 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]



		}



	}



}



}