var Tips2 = new Tips($$('.Tips2'), {
        initialize:function(){
                this.fx = new Fx.Style(this.toolTip, 'opacity', {duration: 500, wait: false}).set(0);
        },
        onShow: function(toolTip) {
                this.fx.start(1);
        },
        onHide: function(toolTip) {
                this.fx.start(0);
        }
});