window.addEvent('domready', function() {
	var Current = '';
	var Visible = '';
	
	
	$('nav_mey').addEvent('mouseover', function() { Show('subnav_mey'); });
	$('nav_mey').addEvent('mouseout', function() { WaitAndHide(); });
	
	$('subnav_mey').addEvent('mouseover', function() { Show('subnav_mey'); });
	$('subnav_mey').addEvent('mouseout', function() { WaitAndHide(); });
		
	
	function Show(sub_id) {
		Current = sub_id;
		UpdateNavigation();
	}
	
	function UpdateNavigation() {
		/* Ausblenden, was gerade gezeigt wird */
		if (Visible != '') {
			document.getElementById(Visible).style.display = 'none';
			Visible = '';
		}
		
		/* Einblenden, was gerade angefordert wird */
		if (Current != '') {
			document.getElementById(Current).style.display = 'block';
			Visible = Current;
		}
	}
	
	function WaitAndHide() {
		Current = '';
		(function(){
			if (Current == '') {
				(function(){
					UpdateNavigation();
				}).delay(800);
			}
		}).delay(10);
	}
});