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


	
$$('#menu a').each(function(el) { 
		el.addEvent('mouseenter',function(){

		el.setStyle('background','url(menu2.gif)');
		this.set('tween', {duration: 200,transition: Fx.Transitions.linear }).tween('margin-left','5px');
		})
		
		el.addEvent('mouseleave',function(){

		el.setStyle('background','url(menu1.gif)');
		this.set('tween', {duration: 800,transition: Fx.Transitions.Bounce.easeOut, wait: true }).tween('margin-left','-20px');
		})
	
	});
	   
});