/***************************
 * Preload Dropdown Images 
 ***************************/
var image_arr = Array(
	'stylesheets/divider.gif',
	'stylesheets/dropdownbottom.gif',
	'stylesheets/dropdowntop.gif',
	'stylesheets/navtopleft.gif',
	'stylesheets/navtopright.gif',
	'stylesheets/d-gradient.gif',
	'stylesheets/shadow.gif'
);

var j = 0;
var p = image_arr.length;
var preBuffer = new Array();

for (i = 0; i < p; i++){
   preBuffer[i] = new Image();
   preBuffer[i].src = image_arr[i];
}
/*****************************************************/
// Nav Dropdowns

initNav = function() {
		var navRoot = document.getElementById("mainnav");
		var lis = navRoot.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++)
		{
			var drops = lis[i].getElementsByTagName("ul");
			if (drops.length)
			{
				lis[i].onmouseover = function()
				{
					this.className += " hover";
				}
				lis[i].onmouseout = function()
				{
					this.className = this.className.replace("hover", "");
				}
			}
		}
		{
		var lis = navRoot.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++)
		{
			var drops = lis[i].getElementsByTagName("ul");
			if (drops.length)
			{
				lis[i].onmouseover = function()
				{
					this.className += " hover";
				}
				lis[i].onmouseout = function()
				{
					this.className = this.className.replace("hover", "");
				}
			}
		}
		}
}

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