// JavaScript Document
var delayid,danhdau;
danhdau = 0;
function showmenu(id){
	if(document.getElementById(id).style.display!="none")
	{
		DoHide(id);
	}
	else if(danhdau != 1)
	{
		DoShow(id);
		delayid = id;
	}
	else 
	{
		DoHide(delayid);
		DoShow(id)
		delayid = id;
	}
}
function DoHide(id){
	document.getElementById(id).style.display = "none";
	danhdau = 0;
}
function DoShow(id){
	document.getElementById(id).style.display = "block";
	danhdau = 1;
	//document.getElementById(delayid).style.display = "none";
}