Event.observe(window, 'load', function() {

	$$('.btn-signin').each(function(el) {
		el.observe('click', function(event) {
			if($('signin').hasClassName('selected')) {
				$('signin').removeClassName('selected');
				$('login-form').removeClassName('selected');
			} else {
				$('signin').addClassName('selected');
				$('login-form').addClassName('selected');
			}
			event.stop()
		});
	});
	
});