//top nav preload
var natural = new Image();  natural.src = 'assets/home_natural.gif';
var natural_ov = new Image();  natural_ov.src = 'assets/home_natural_ov.gif';
var arch = new Image();  arch.src = 'assets/home_arch.gif';
var arch_ov = new Image();  arch_ov.src = 'assets/home_arch_ov.gif';
var abstractnav = new Image();  abstractnav.src = 'assets/home_abstract.gif';
var abstractnav_ov = new Image();  abstractnav_ov.src = 'assets/home_abstract_ov.gif';
var vehicle = new Image();  vehicle.src = 'assets/home_vehicle.gif';
var vehicle_ov = new Image();  vehicle_ov.src = 'assets/home_vehicle_ov.gif';

var nav_natural = new Image();  nav_natural.src = 'assets/nav_natural.jpg';
var nav_natural_ov = new Image();  nav_natural_ov.src = 'assets/nav_natural_ov.jpg';
var nav_arch = new Image();  nav_arch.src = 'assets/nav_arch.jpg';
var nav_arch_ov = new Image();  nav_arch_ov.src = 'assets/nav_arch_ov.jpg';
var nav_abstract = new Image();  nav_abstract.src = 'assets/nav_abstract.jpg';
var nav_abstract_ov = new Image();  nav_abstract_ov.src = 'assets/nav_abstract_ov.jpg';
var nav_vehicle = new Image();  nav_vehicle.src = 'assets/nav_vehicle.jpg';
var nav_vehicle_ov = new Image();  nav_vehicle_ov.src = 'assets/nav_vehicle_ov.jpg';
var nav_new = new Image(); nav_new.src = 'assets/nav_new.jpg';
var nav_new_ov = new Image(); nav_new_ov.src = 'assets/nav_new_ov.jpg';
var nav_commissioned = new Image(); nav_commissioned.src = 'assets/nav_commissioned.jpg';
var nav_commissioned_ov = new Image(); nav_commissioned_ov.src = 'assets/nav_commissioned_ov.jpg';

//rollover code
//example - <a href="index.html" onMouseOver="swap('NAME','img_ov')" onMouseOut="swap('NAME','img')"><img src="images/header_02.gif" name="NAME" border="0"></a>
function swap(location, image) {
	document[location].src = eval(image + ".src");
}

//Copyright
   COPYRIGHT = "Copyright &copy; 2004-";
   function writeCopyright()
   {
      document.write(COPYRIGHT, new Date().getFullYear(), "");
   }