// JavaScript Document
    Window.onDomReady(function(){
        Window.disableImageCache(); // Not sure it is required but I left it
        $S('#navlist li a').each(function(el) {    
            var effect = el.effect('background-position', {duration: 700, wait: false, transition: fx.Transitions.circOut, fps: 50}).set(-300);
            el.addEvent('mouseover', effect.goTo.pass(0, effect)).addEvent('mouseout', effect.goTo.pass(-300, effect));
        });
    });