//<![CDATA[
function toggleMenu(el, over)
{
 YAHOO.util.Dom.addClass(el, 'over');
 var ch = YAHOO.util.Dom.getChildren(el);
 if (over) {
   //alert('over');

	 for (var i=0; i< ch.length; i++) {
		 	if (ch[i].className == 'nav-dropdown') {
				ch[i].style.visibility = 'visible'
		 	}
	 }
	 
 }
 else {
   //alert('out');

	 for (var i=0; i< ch.length; i++) {
		 	if (ch[i].className == 'nav-dropdown') {
				ch[i].style.visibility = 'hidden'
		 	}
	 }
 }
}
	
//]]>