Event.observe(window, "load", function() {
	var $tbls = $$(".dl-tbl");
	
	$tbls.each(function($tbl) {
		var $switches = $tbl.select(".switch");
		
		$switches.each(function($switch) {
			var $parent = $switch.ancestors()[1];
			
			$switch.observe("click", function() {
				$parent.toggleClassName("open");
				$parent.siblings().each(function($sibling) {
					$sibling.removeClassName("open");
				});
			});
		});
	});
});