function Mousedown(Lname,Nid,total,StarClassName,EndClassName){
	for(var i=1;i<=total;i++){
		document.getElementById(Lname+i).className =EndClassName;
		document.getElementById("menu_div"+i).style.display ='none';
		}
	document.getElementById(Lname+Nid).className =StarClassName;
	document.getElementById("menu_div"+Nid).style.display ='block';
	}