function showElement(layer){
var myLayer = document.getElementById(layer);
if(myLayer.style.display=="none"){
myLayer.style.display="block";
myLayer.backgroundPosition="top";
} else { 
myLayer.style.display="none";
}
}

window.addEvent('domready', function(){
var mySlide = new Fx.Slide('v-menu123');
mySlide.hide(); 
$('toggle').addEvent('click', function(e){
e = new Event(e);
mySlide.toggle();
e.stop();
});
});