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

	
	var effekte = new Object();
	

	$$('#nav li a img').each(function(bild){
		if(!bild.getParent().hasClass('active')){
			bild.setStyle('opacity',0);
			bild.setStyle('display','block');
			
		}
		

		
		effekte[bild.getProperty('id')] = new Fx.Tween(bild,{link:'cancel', duration:500});
		
	});
	
	$$('#nav li a').each(function(link){
		
		link.addEvent('click',function(){
			this.addClass('active');
		})
	
		link.addEvent('mouseenter',function(){
			if(!this.hasClass('active')){
				effekte[this.getElement('img').getProperty('id')].start('opacity',1);				
			}

		});
		
		link.addEvent('mouseleave',function(){
			if(!this.hasClass('active')){
			effekte[this.getElement('img').getProperty('id')].start('opacity',0);
			}
		});
		
	});
	
	
	
	
});