Event.observe(window,'load',function(){
	Event.observe('account','mouseover',function (event){
		$('account').src="images/header_accountb_over.gif";
	});
	
	Event.observe('account','mouseout',function (event){
		$('account').src="images/header_accountb.gif";
	});
	
	Event.observe('checkout','mouseover',function (event){
		$('checkout').src="images/header_checkoutb_over.gif";
	});
	
	Event.observe('checkout','mouseout',function (event){
		$('checkout').src="images/header_checkoutb.gif";
	});
	
	Event.observe('cart','mouseover',function (event){
		$('cart').src="images/header_cartb_over.gif";
	});
	
	Event.observe('cart','mouseout',function (event){
		$('cart').src="images/header_cartb.gif";
	});
});