var containerHeight;            
    window.onload = function() {
        containerHeight1 = new fx.Height('cat1', {height: true, opacity: true, duration: 500});
		containerHeight2 = new fx.Height('cat2', {height: true, opacity: true, duration: 500});
		containerHeight3 = new fx.Height('cat3', {height: true, opacity: true, duration: 500});
		containerHeight4 = new fx.Height('cat4', {height: true, opacity: true, duration: 500});
		containerHeight5 = new fx.Height('cat5', {height: true, opacity: true, duration: 500});
		containerHeight6 = new fx.Height('cat6', {height: true, opacity: true, duration: 500});
			containerHeight1.hide();
			containerHeight2.hide();
			containerHeight3.hide();
			containerHeight4.hide();
			containerHeight5.hide();
			containerHeight6.hide();
	}