if(document.images)
{
		p1 =  new Image();
		p2 =  new Image();
		p3 =  new Image();
		p4 =  new Image();
			


		p1.src = "graphics/btn_home_over.gif";
		p2.src = "graphics/btn_products_over.gif";
		p3.src = "graphics/btn_onlinequoting_over.gif";
		p4.src = "graphics/btn_contactus_over.gif";
			
}