window.addEvent('domready', function() {
    var status = {
        'true': 'schließen',
        'false': 'Erweiterte Suche'
    };
    var myVerticalSlide    = new Fx.Slide('vertical_slide');
    myVerticalSlide.hide();
    $('v_toggle').addEvent('click', function(e){
        e.stop();
        myVerticalSlide.toggle();
    });
    myVerticalSlide.addEvent('complete', function() {
        $('v_toggle').set('html', status[myVerticalSlide.open]);
    });
});