function showcontent(alink)
{
	var ulid=alink.parentNode.parentNode.id
	var ullist = document.getElementById(ulid).getElementsByTagName("li");
	var getrel = alink.rel;
	for(i=0;i<ullist.length;i++)
	{
		ullist[i].className="";
		document.getElementById(ullist[i].childNodes[0].rel).style.display="none";
	}
	alink.parentNode.className="active";
	
	document.getElementById(getrel).style.display="block";
}

function starttabs()
{
	try{
		var ulobj = document.getElementById("navtab");
		var ullist = ulobj.getElementsByTagName("li")
	
		for(i=0; i<ullist.length;i++){
			var ulink= ullist[i].getElementsByTagName("a")[0]
	
			ulink.onclick= function()	{
				showcontent(this)
				return false;
				
			}
		}
	}catch(err){
	
	}
}