function showSlider(el, slider, top){
    var moo_anchors = slider.getChildren('div');
    $each(moo_anchors, function(a) { a.setStyle('display', (a.id == el.rel) ? 'block' : 'none'); });

    slider.tween('top', [0, top]);
}

function hideSlider(el){
    el.tween('top', [0]);
}

window.addEvent('domready', function(){
    var top = -108, slider = $('moo'), anchors = $('garrafas').getElements('a'), timeID;

    anchors.addEvent('mouseover', function(){
        $clear(timeID);
        showSlider(this, slider, top)
    });
    
    anchors.addEvent('mouseout', function(){
        timeID = hideSlider.delay(3500, this, slider);   
    });
});