function initPage()
{
	var nav = document.getElementById("nav");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("li");
		for (var i = 0; i < nodes.length; i++)
		{

				nodes[i].onmouseover = function () 
				{
					this.className += " hover";
				}
				nodes[i].onmouseout = function ()
				{
					this.className = this.className.replace(" hover", "");
				}

		}
	}
	
}
if (window.attachEvent)
	window.attachEvent("onload", initPage);

/*this code for drop-down menu has been updated*/
function initNav()
{
	var nav = document.getElementById("add-nav");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("a");
		for (var i = 0; i < nodes.length; i++)
		{
			var _parent = nodes[i].parentNode;
			if (_parent.parentNode.className == "left-sub-nav" )
			{
				if(_parent.className == "active")
				{
					_parent.className = '';
				}
				else
				{
					_parent.className = 'close';
				}
			}
			else
			{
				if(nodes[i].className == "sub-active")
				{
					_parent.parentNode.parentNode.getElementsByTagName("a")[0].className = "active";
					_parent.parentNode.parentNode.className = '';
				}
			}
			nodes[i].onclick = function () 
			{
				if ( this.parentNode.className == "close" )
				{
					this.parentNode.className = "";
					this.className = "sub-active";
				}
				else
				{
					this.parentNode.className = "close";
					this.className = "";
				}
			}
		}
	}

}
if (window.addEventListener) window.addEventListener("load", initNav, false)
else if (window.attachEvent) window.attachEvent("onload", initNav);