Event.observe(window, 'load', 
		
				function (){				 
					 /* 
					 	Wire-up bar actions
					 	apply to all items with class bar
					 */
					 $$('.bar').each( function( n, i ) {
							Event.observe( n, 'click', function( e ) {
								Effect.toggle($(this).next(), 'blind', {duration:'.5'});
								$(this).select(":last-child")[0].toggleClassName('arrow_up');
								Event.stop(e);
							});
					 })
				}
);