/********** NAVIGATION **********/

navigationdropdown = function() {
	var element = document.getElementById("navigation_1").getElementsByTagName("LI");
	for (var i=0; i<element.length; i++) {
		element[i].onmouseover=function() {
			this.className+=" navigationdropdown";}
		element[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" navigationdropdown\\b"), "");}}}
if (window.attachEvent) window.attachEvent("onload", navigationdropdown);