window.addEvent('domready', function() 
{	
	//use transparent image as background to search form
	$('search_form').style.background = 'transparent url(/images/header/search_form_top.png) no-repeat left top';
	
	//add onclick events for category links
	
	var image_div = $('home_image');
	var links = $$('a.category_link');
	
	$each(links, function(el)
	{
		el.addEvent('mouseenter', function() {
			image_div.setStyle('background', '#FFF url(/images/home_images/' + el.id + '.jpg) no-repeat bottom left');
		});
		
		el.addEvent('mouseleave', function() {
			image_div.setStyle('background', '#FFF url(/images/home_images/default.jpg) no-repeat bottom left');
		});
	});
});