function preloadImages() {
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}

function hover(imageName, newSRC) {
	if (document.images) {
		document[imageName].src = newSRC;
		}
	}

function unhover(imageName, newSRC) {
	if (document.images) {
		document[imageName].src = newSRC;
		}
	}

if (document.images) {
	preload_image_object = new Image();
	image_url = new Array();
	image_url[0] = "/graphics/nav/new_stuff.gif";
	image_url[1] = "/graphics/nav/serif.gif";
	image_url[2] = "/graphics/nav/sans_serif.gif";
	image_url[3] = "/graphics/nav/script.gif";
	image_url[4] = "/graphics/nav/decorative.gif";
	image_url[5] = "/graphics/nav/illustration.gif";
	image_url[6] = "/graphics/nav/portfolio.gif";
	image_url[7] = "/graphics/nav/bio.gif";
	image_url[8] = "/graphics/nav/hover/new_stuff.gif";
	image_url[9] = "/graphics/nav/hover/serif.gif";
	image_url[10] = "/graphics/nav/hover/sans_serif.gif";
	image_url[11] = "/graphics/nav/hover/script.gif";
	image_url[12] = "/graphics/nav/hover/decorative.gif";
	image_url[13] = "/graphics/nav/hover/illustration.gif";
	image_url[14] = "/graphics/nav/hover/portfolio.gif";
	image_url[15] = "/graphics/nav/hover/bio.gif";
	
	var i = 0;
	for(i=0; i<=15; i++) 
		preload_image_object.src = image_url[i];
	}