function showSub(subId){
	if (document.getElementById('subMenu' + subId)){
		document.getElementById('subMenu' + subId).style.display = 'block';
	}
	if (document.getElementById('link' + subId)){
		document.getElementById('link' + subId).className = 'folderLink menuLinkHover';
	}

}

function hideSub(subId){
	if (document.getElementById('subMenu' + subId)){
		document.getElementById('subMenu' + subId).style.display = 'none';
	}
	if (document.getElementById('link' + subId)){
		document.getElementById('link' + subId).className = 'folderLink';
	}
}

sfHover = function() 
{
	var sfEls = document.getElementById("contentMenu").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"), "");
        }
    }
    
    var sfEls = document.getElementById("upperContentMenu").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);