// JavaScript Document

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
var ddtabmenu={
	disabletablinks: false, //Disable hyperlinks in 1st level tabs with sub contents (true or false)?
	snap2original: [true, 1200], //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]
			}
		}
	}
}