$(document).ready(function() {
	
	startList = function() {
		if (document.all&&document.getElementById) {
			navRoot = document.getElementById("main_navigation_list");
			for (i=0; i<navRoot.childNodes.length; i++) {
				node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
						this.className+=" over";
					}
					node.onmouseout=function() {
						this.className=this.className.replace(" over", "");
					}
				}
			}
		}
	}
	window.onload=startList;
	
	$(".navigation_list li ul").hover(function(){
		$(this).parent("li").children("a").addClass("nav_link_over");
	},function(){
		$(this).parent("li").children("a").removeClass("nav_link_over");
	})
});