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;
var shim_levels=new Array();
function getlevel(l)
{
	var i=0; 
	while ( (i < shim_levels.length) && (l > shim_levels[i]) )
	{
		i++;
	}
	if (i == shim_levels.length)
	{
		shim_levels[i]=l;
	}
	return i;
}

function addhovertoparent(item)
{
	if (item && (item.shim_parent))
	{
		if ((item.tagName=="LI") || (item.tagName=="li"))
		{
			if (item.className.indexOf("hover")==-1)
			{
				item.className += " hover";
			}
		}
		if (item.shim_parent)
		{
			addhovertoparent(item.shim_parent);
		}
	}
}

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

	currentNode.onmouseover = function ()
	{
		if (this.className.indexOf("hover")==-1)
		{
			this.className += " hover";
		}
		var iframe=document.getElementById('shim'+this.level);
		if (iframe)
		{
			addhovertoparent(this.shim_parent);
			var o=$(this).offset();
			var w=$(this).width();
			var h=$(this).height();
			h=0;
			var l=o.left;
			var t=(o.top+h);
			for (var c=0; c < this.childNodes.length; c++)
			{
				if ((this.childNodes[c].tagName=="ul") || (this.childNodes[c].tagName=="UL"))
				{
					h=$(this.childNodes[c]).height();
					w=$(this.childNodes[c]).width();
					o=$(this.childNodes[c]).offset();
					l=o.left;
					t=o.top;
				}
			}
			iframe.style.display='block';
			iframe.style.left=l+"px";
			iframe.style.top=t+"px";
			iframe.style.width=w+"px";
			iframe.style.height=h+"px";
		}
		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);

					if (i != null)
					{
						i.hoveradd++;
					}
				}
				this.childNodes[1].onmouseout=function()
				{
					var i=getparent(this);
					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(){};
				}
			}
		}
		var iframe=document.getElementById('shim'+this.level);
		if (iframe)
		{
			iframe.style.display='none';
		}
	}
}

function recurseaddhovers(shim_parent, p, level)
{
	if ((p.tagName=="LI") || (p.tagName=="li"))
	{
		addhovers(p, level);
	}
	p.shim_parent=shim_parent;
	for (var i=0; i<p.childNodes.length; i++)
	{
		if (p.childNodes[i].nodeType != 3)
		{
			recurseaddhovers(p, p.childNodes[i], level+1);
		}
	}
}

function simulatehover()
{
	hoverParent = document.getElementById("nav");
	if (hoverParent==null)
	{
		hoverParent = document.getElementById("mainnav");
	}
	if (hoverParent)
	{
		if (hoverParent.childNodes.length==1)
		{
			hoverParent=hoverParent.childNodes[0];
		}
		recurseaddhovers(null, hoverParent, 0);
	}
	for (var i=0; i < 5; i++)
	{
		var el=document.getElementById("shim"+i);
//		el.style.filter='progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)';
	}
}


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

function openexternal(atag)
{
	return !window.open(atag.href);
}