function newImg(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function imgOn(iName) {
	if (document.images) {
		document.images[iName].src = eval(iName + "On.src");
		
	}
}

function imgOff(iName) {
	if (document.images) {
		document.images[iName].src = eval(iName + "Off.src");
	}
}

function preloadNav() {
	if (document.images) {
		bioOn = newImg("/img/nav/bioOn.jpg");
		bioOff = newImg("/img/nav/bioOff.jpg");

		musicOn = newImg("/img/nav/musicOn.jpg");
		musicOff = newImg("/img/nav/musicOff.jpg");

		galleryOn = newImg("/img/nav/galleryOn.jpg");
		galleryOff = newImg("/img/nav/galleryOff.jpg");

		buyOn = newImg("/img/nav/buyOn.jpg");
		buyOff = newImg("/img/nav/buyOff.jpg");

		linksOn = newImg("/img/nav/linksOn.jpg");
		linksOff = newImg("/img/nav/linksOff.jpg");

		contactOn = newImg("/img/nav/contactOn.jpg");
		contactOff = newImg("/img/nav/contactOff.jpg");

	}
}