//下拉菜单相关
var navCurrentId = "";

function showMenu(id)
{
	var objMenu = document.getElementById("menu" + id);
	objMenu.style.visibility = "visible";

	var objMenuA = document.getElementById("menuA" + id);
	if (objMenuA.className == "navCurrent")
	{
		navCurrentId = objMenuA.uniqueID;
		if (!navCurrentId)
		{
			navCurrentId = objMenuA.clientID;
		}
	}
	else
	{
		objMenuA.className = "navCurrent";
	}
}

function hiddMenu(id)
{
	var objMenu = document.getElementById("menu" + id);
	objMenu.style.visibility = "hidden";

	var objMenuA = document.getElementById("menuA" + id);
	if (objMenuA.uniqueID != navCurrentId)
	{
		objMenuA.className = "nav";
	}
}