//滚动
function marquee(i, direction)
{
	var obj = document.getElementById("marquee" + i);
	var obj1 = document.getElementById("marquee" + i + "_1");
	var obj2 = document.getElementById("marquee" + i + "_2");

	if (direction == "up")
	{
		if (obj2.offsetTop - obj.scrollTop <= 0)
		{
			obj.scrollTop -= (obj1.offsetHeight + 20);
		}
		else
		{
			var tmp = obj.scrollTop;
			obj.scrollTop++;
			if (obj.scrollTop == tmp)
			{
				obj.scrollTop = 1;
			}
		}
	}
	else
	{
		if (obj2.offsetWidth - obj.scrollRight <= 0)
		{
			obj.scrollLeft -= obj1.offsetWidth;
		}
		else
		{
			obj.scrollLeft++;
		}
	}
}

function marqueeStart(i, direction)
{
	var obj = document.getElementById("marquee" + i);
	var obj1 = document.getElementById("marquee" + i + "_1");
	var obj2 = document.getElementById("marquee" + i + "_2");

	obj2.innerHTML = obj1.innerHTML;
	var marqueeVar = window.setInterval("marquee("+ i +", '"+ direction +"')", 20);
	obj.onmouseover = function(){window.clearInterval(marqueeVar);}
	obj.onmouseout = function(){marqueeVar = window.setInterval("marquee("+ i +", '"+ direction +"')", 20);}
}


//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.id;
	}
	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.id != navCurrentId)
	{
		objMenuA.className = "nav";
	}
}