function showTab(tab) {
	switch (tab) {
	case 'topRated':
		$('top_rated').style.display = 'block';
		$('top_viewed').style.display = 'none';
		$('top_today').style.display = 'none';
		break;
	case 'mostRecent':
		$('top_rated').style.display = 'none';
		$('top_viewed').style.display = 'none';
		$('top_today').style.display = 'block';
		break;
	case 'mostViewed':
		$('top_rated').style.display = 'none';
		$('top_viewed').style.display = 'block';
		$('top_today').style.display = 'none';
		break;
	}
}