var mouse_over = true;
window.addEvent('domready',function(){
								
	// ie6
	if($$('.ie6')[0]){
		$$('#navigation').setStyle('height',$('col3_content').offsetHeight+145+'px');
	}
								
	// 2./3. Ebene
	$$('#nav_main_top ul').each(function(item){
		item.setStyle('display','none');
		item.className=item.className+' navi_absolute';
	});
	$$('#nav_main ul').each(function(item){
		item.setStyle('display','none');
		item.className=item.className+' navi_absolute';
	});
	// EventHandler
	$$('.erste_ebene').addEvent('mouseover',show_subs_parent);
	$$('.zweite_ebene').addEvent('mouseover',show_subs_children);
	$$('.dritte_ebene').addEvent('mouseover',function(){mouse_over=true;});
	$$('.navi_absolute').addEvent('mouseout',function(){
		mouse_over = false;
	});
	
	// Leave
	$$('#navigation').addEvent('mouseout',function(){
		closeMenu.delay(500);
	});
});

function show_subs_parent(){
	mouse_over=true;
	$$('.navi_absolute').setStyle('display','none');
	var next = this.getNext();
	if(next != null){
		next.setStyle('display','block');
	}
}

function show_subs_children(){
	mouse_over=true;
	$$('.ul_zweite_ebene .navi_absolute').setStyle('display','none');
	var next = this.getNext();
	if(next != null){
		next.setStyle('display','block');
	}
}

function hide_subs(){
	var next = this.getNext();
	if(next != null){
		next.setStyle('display','none');
	}	
}

function closeMenu(){
	if(mouse_over != true){
		$$('.navi_absolute').setStyle('display','none');	
	}
}