var switcher={start:function(){switcher.active=1;switcher.className='switcher';switcher.items=$$('.'+switcher.className);setInterval('switcher.periodicalSetItem()',5000);},periodicalSetItem:function(){++switcher.active;if(switcher.active>switcher.items.length){switcher.active=1;}
switcher.setItem(switcher.active);},setItem:function(item){for(i=1;i<=switcher.items.length;++i){if(i!=item){$(switcher.className+'-'+i).addClassName('hidden');}else{$(switcher.className+'-'+i).removeClassName('hidden');}}}};