window.addEvent("domready", function(){

    $$(".level1").each(function(el){
    	el.addEvent('mouseover', function() {
    	   clearAllSubs();
    	});
    })
    
    
    
	$("Footer").addEvent('mouseover', function() {
	   clearAllSubs();
	});
	

    $$(".hasSubs").each(function(el){
    	el.addEvent('mouseover', function() {
    	   clearAllSubs();
            $("sub" + el.id).setStyle("display", "block");
    	});
    });
    
    
    function clearAllSubs() {
        $$(".hasSubs").each(function(el){
            $("sub" + el.id).setStyle("display", "none");
        })
    }
  	
})