function product_search_box_init () {
	if ($('product_search_box')) {
		Event.observe('product_search_box_search', 'click', function (e) {
			$$('#product_search_box input.text').each(function(item) {
				if (item.title == item.value) {
					item.value = '';
				}
			});
		});
	}
}
Event.onDOMReady(product_search_box_init);