function switchCategories(switcherId,elementsClassName,switcherHiddenClass,switcherOpenedClass){var switcher=$(switcherId);if(switcher.hasClass(switcherOpenedClass)){$$('LI.'+elementsClassName).each(function(el){el.removeClass('hidden-item');});switcher.removeClass(switcherOpenedClass);switcher.addClass(switcherHiddenClass);}else{$$('LI.'+elementsClassName).each(function(el){el.addClass('hidden-item');});switcher.removeClass(switcherHiddenClass);switcher.addClass(switcherOpenedClass);}}