function navClasses(navid){
	var ul = document.getElementById(navid);
	if(ul!='' && ul!=undefined && ul!=null){
		var lis = ul.getElementsByTagName('li');
		var levels=0;
		for(y=0;y<lis.length;y++){
			if(lis[y].className.search('currentbranch')>-1){
				levels++;
			}
			else if(lis[y].className.search('currentitem')>-1){
				levels++;
				if(lis[y].getElementsByTagName('ul').length>0){
					levels++;
				}
			}
		}
		ul.parentNode.className+=' level'+levels;
	}
}