if (document.images) {
	pic1= new Image(150,36); 
	pic1.src="/layout/btn-about_on.gif"; 
	pic2= new Image(150,36); 
	pic2.src="/layout/btn-services_on.gif"; 
	pic3= new Image(150,36); 
	pic3.src="/layout/btn-rate-quote_on.gif"; 
	pic4= new Image(150,36); 
	pic4.src="/layout/btn-shipping-forms_on.gif"; 
	pic5= new Image(150,36); 
	pic5.src="/layout/btn-track-shipping_on.gif"; 
	pic6= new Image(150,36); 
	pic6.src="/layout/btn-contact_on.gif"; 
}