var curobj=null;
var timeoutid=null;
var obj=null;
function mouseonmenu(tmp)
{
	obj = tmp;
	timeoutid = setTimeout("test()", 800);
}
function test()
{
	clearTimeout(timeoutid);
//	        alert("obj="+obj.id);         
    if (curobj == obj)
    {
        return;
    }
        
	if (curobj == null)
	{	
		subject_1.src = "/images/subject_1.png";
		obj.src = "/images/sel_" + obj.id + ".png";
		curobj = obj;
	}
	else if (curobj != obj)
	{
		curobj.src = "/images/" + curobj.id + ".png";
		obj.src = "/images/sel_" + obj.id + ".png";
		curobj = obj;
	}

	obj.click();
}