$j.tabs = function(selector, start) {
	$j(selector).each(function(i, element) {
		$j($j(element).attr('tab')).css('display', 'none');
		
		$j(element).click(function() {
			$j(selector).each(function(i, element) {
				$j(element).removeClass('selected');
				
				$j($j(element).attr('tab')).css('display', 'none');
			});
			
			$j(this).addClass('selected');
			
			$j($j(this).attr('tab')).css('display', 'block');
		});
	});
	
	if (!start) {
		start = $j(selector + ':first').attr('tab');
	}

	$j(selector + '[tab=\'' + start + '\']').trigger('click');
};