Event.observe(window, "load", function(){
	$$("#menu ul li.menuparent").each(function(node){
		
		$(node).observe("mouseover", function(event) {
			obSousMenu = $(node).down("ul");
			if ( obSousMenu.getStyle('visibility') == 'hidden') {
				$(node).down('a').down('img.menuimg').setAttribute('src', 'fileadmin/templates/media/img/'+$(node).id+'_on.gif');
				obSousMenu.setStyle({visibility: "visible"});
			}
		});
		
		$(node).observe("mouseout", function(event) {
			obSousMenu = $(node).down("ul");
			if ( obSousMenu.getStyle('visibility') == 'visible') {
				$(node).down('a').down('img.menuimg').setAttribute('src', 'fileadmin/templates/media/img/'+$(node).id+'.gif');
				obSousMenu.setStyle({visibility: "hidden"});
			}
		});
	});
});