window.addEvent('domready', function(){
        var Tips0 = new Tips($$('.tooltip'), {
            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);
            },
            
            className: 'custom',
            hideDelay: 400,
            fixed: true
        });
        
    });