mootool probleem

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

var list = $$('#menu li a');
var log = $('log');
list.each(function(element, i) {
 
	var fx = new Fx.Styles(element, {duration:300, transition: Fx.Transitions.Quad.easeOut, wait:false});
 
 	element.addEvent('domready', function(){
		fx.start({
			'background-position': '0px 0px'
		});		
	})
 
	element.addEvent('mouseenter', function(){
		fx.start({
			'background-position': '0px -24px'
		});
		
	});
 
	element.addEvent('mouseleave', function(){
	 	if(this.getText()!=log.getText()){
		fx.start({
			'background-position': '0px 0px'
		});
		}
	});
	
	element.addEvent('click', function(){
		log.setText(this.getText());
		var o={};
		o[i]={'background-position': [element.getStyle("background-position"), '0px -24px']}
		list.each(function(active, j){
			if(i != j){
				o[j]= {'background-position': [active.getStyle("background-position"), '0px 0px']}				
			}
		});
		fx.start(o);
		console.log(o);
	});
	
	
	

}); 

});