var viewing = false;

document.observe('dom:loaded', function() {
	
	if($('advanced')) {
		$('advanced').observe('click', function() {
			if(!viewing) {
				Effect.BlindDown('criterias', { duration: 1.0 });
				viewing = true;
			}else{
				Effect.BlindUp('criterias', { duration: 1.0 });
				viewing = false;
			}
		});
	}
	
	$('logo').observe('click', function(event) {
		document.location = '/';
	});
	
});