if(document.images)
	{
		p1 =  new Image();
		p2 =  new Image();
		p3 =  new Image();
		p4 =  new Image();
		p5 =  new Image();
		p6 =  new Image();
		
		
		
		p1.src = "graphics/nav_home_over.gif";
		p2.src = "graphics/nav_about_over.gif";
		p3.src = "graphics/nav_work_over.gif";
		p4.src = "graphics/nav_services_over.gif";
		p5.src = "graphics/nav_billings_over.gif";
		p6.src = "graphics/nav_contact_over.gif";



}