if (document.images != null)
{

	onnav = new Array (4); offnav = new Array (4);
	for (i=1;i<4;i++) {onnav[i] = new Image; offnav[i] = new Image;}

	onnav[1].src="/images/home/about_.gif";
	onnav[2].src="/images/home/products_.gif";
	onnav[3].src="/images/home/contact_.gif";

	offnav[1].src="/images/home/about.gif";
	offnav[2].src="/images/home/products.gif";
	offnav[3].src="/images/home/contact.gif";
}

function nav_on(n) {if (document.images != null)
{document.images["n"+(n+"")].src=onnav[n].src;}}
function nav_off(n) {if (document.images != null)
{document.images["n"+(n+"")].src=offnav[n].src;}}