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

    var ban = $$('#ban div');
	ban.each(function(element) {

      var span = element.getElements('span');

		element.addEvents({
			mouseenter: function(){
				span.set('morph', {duration: 800, transition: 'expo:out'});
				span.morph({
						   'opacity': '1'
				});
			},
			mouseleave: function(){
				this.set('morph', {duration: 800, transition: 'expo:in'});
				span.morph({
						   'opacity': '0'
				});
			}
		});
    });	
});