window.onload = function() {
		// code for IE
		
		if(!document.body.currentStyle) return;
		var subs = document.getElementsByTagName('ul');
		for(var i=0; i<subs.length; i++) {
			if(subs[i].className.indexOf('sub-nav','sub-sub-nav') > -1) {
				var li = subs[i].parentNode;				
				if(li && li.lastChild.style) {				
					li.onmouseover = function() {
						this.lastChild.style.visibility = 'visible';
					}

					li.onmouseout = function() {
						this.lastChild.style.visibility = 'hidden';
					}
				}
			}
		}
	}