window.addEvent('domready', function() {
    var logoFx = new Fx.Morph('logo', {
        transition: 'cubic:in:out',
        duration: 1000
    });

    $$('#menu .page_item a').addEvent('click', function() {
        $('main-wrapper').setStyle('background-color', '#ffffff');
        
        logoFx.start({
            opacity: 0,
            height: 0
        }).chain(function() {
            window.location.href = this.get('href');
        }.bind(this));

        return false;
    });
});