function initPage()
{
	var nav = document.getElementById("main-nav");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("li");
		for (var i = 0; i < nodes.length; i++)
		{
			nodes[i].onmouseover = function () 
			{
				if (this.className.indexOf("hover") == -1)
				{
					this.className += " hover";
					if(this.parentNode.Id != "main-nav") {

						this.parentNode.style.paddingTop = this.offsetTop+ "px";

						var submenus = this.getElementsByTagName("ul");

							if(submenus.length)
							{
								submenus[0].style.paddingTop = this.offsetTop+ "px";
							}
					}
				}
			}
			nodes[i].onmouseout = function ()
			{
				this.className = this.className.replace("hover", "");
			}
		}
	}
}

addDOMLoadEvent(initPage);