function doClick(o){
	o.className="nav_current";
	var j;
	var id;
	var e;
	for(var i=0;i<=13;i++){
		id ="nav"+i;
		j = document.getElementById(id);
		e = document.getElementById("sub"+i);
		if(id != o.id){
			j.className="nav_link";
			e.style.display = "none";
		}
		else{
			e.style.display = "block";
		}
	}
}

function ChangDiv()
{
	getObject("HideLayer").style.display = "";
	setTimeout("HideDiv()",12000)   //全屏的持续时间
}
function HideDiv()
{
	getObject("HideLayer").style.display = "none";
}
function ShowFull()
{
	setTimeout("ChangDiv()",2000);   //全屏在窗口打开后延迟N秒启动
}