function hideCards() {
			var cardsToHide = $$('li.card_act'); 
				for (var i=0; i < cardsToHide.length; i++) {
				cardsToHide[i].removeClass('card_act');
				cardsToHide[i].addClass('card_inact');
				var cont = cardsToHide[i].get('id');
				$('c_'+cont).setStyle('display', 'none');
				var contToHide = document.getElementById('c_' + cardsToHide[i].get('id'));
				}
			}
		
window.addEvent('domready', function() {

	
$$('#cardswitch li').addEvent('click', function(e) {
	e.stop();
	if(this.hasClass('card_inact')) {
		hideCards();
		var cont = this.get('id'); 
		this.removeClass('card_inact');
		this.addClass('card_act');
		$('c_'+cont).setStyle('display', 'block');
		}
	});
});