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 hoverParent=null;

function getparent(item)
{
	if (hoverParent)
	{
		for (var i=0; i<hoverParent.childNodes.length; i++)
		{
			for (var j=0; j<hoverParent.childNodes[i].childNodes.length; j++)
			{
				if (hoverParent.childNodes[i].childNodes[j]==item)
				{
					return hoverParent.childNodes[i];
				}
			}
		}
	}
	return null;
}

var thei=0;

function addhovers(currentNode)
{
	currentNode.hoveradd=0;
	currentNode.hoversub=0;
	currentNode.lockhovername="node"+thei;
	thei++;

	currentNode.onmouseover = function ()
	{
		if (this.className.indexOf("hover")==-1)
		{
			this.className += " hover";
		}
		if (this.childNodes.length==2)
		{
			// first is heading, second is submenu
			if (this.childNodes[1].onmouseover!=null)
			{
			
				this.childNodes[1].onmouseover=function()
				{
					var i=getparent(this);
//					alert('add to '+i.lockhovername+'='+i.hoveradd+','+i.hoversub);
					if (i != null)
					i.hoveradd++;
				}
				this.childNodes[1].onmouseout=function()
				{
					var i=getparent(this);
//					alert('sub from '+i.lockhovername+'='+i.hoveradd+','+i.hoversub);
					if (i != null)
						i.hoversub++;
				}
			}

		}
	}

	currentNode.onmouseout = function ()
	{
		if ((this.hoveradd - this.hoversub)<=0)
 		{
			this.hoveradd=0;
			this.hoversub=0;
			this.className=this.className.replace(" hover", "");
			if (this.className=="hover")
			{
				this.className="";
			}
			if (this.childNodes.length==2)
			{
				if (this.childNodes[1].onmouseover!=null)
				{
					this.childNodes[1].onmouseover=function(){};
					this.childNodes[1].onmouseout=function(){};
				}
			}
		}
	}
}

function recurseaddhovers(p)
{
	if ((p.tagName=="LI") || (p.tagName=="li"))
	{
		addhovers(p);
	}
	for (var i=0; i<p.childNodes.length; i++)
	{
		recurseaddhovers(p.childNodes[i]);
	}
}

function simulatehover()
{
	hoverParent = document.getElementById("nav");
	if (hoverParent)
	{
		if (hoverParent.childNodes.length==1)
		{
			hoverParent=hoverParent.childNodes[0];
		}
		recurseaddhovers(hoverParent);
	}
}


/*Use Object Detection to detect IE6*/ 
var m = document.uniqueID /*IE*/ && document.compatMode /*>=IE6*/ && !window.XMLHttpRequest /*<=IE6*/ && document.execCommand ;
try
{
	if(!!m)
	{
		if (window.attachEvent) { window.attachEvent("onload", simulatehover); }
		document.execCommand("BackgroundImageCache", false, true);
//html { filter:expression(document.execCommand("BackgroundImageCache", false, true)); }
	}
}
catch(ex)
{
}