sfHover = function() {
	if (document.getElementById("topnav") == null)
		return;
	var sfEls = document.getElementById("topnav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", sfHover);

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_changeProp(objName,x,theProp,theValue) { //v6.0
	var obj = MM_findObj(objName);
	if (obj && (theProp.indexOf("style.") == -1 || obj.style)) {
		if (theValue == true || theValue == false)
			eval("obj."+theProp+"="+theValue);
		else 
			eval("obj."+theProp+"='"+theValue+"'");
	}
}