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

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		tmcnew_over = newImage("image/navi/navi01b.gif");
		midnightnew_over = newImage("image/navi/navi02b.gif");
		taboonew_over = newImage("image/navi/navi03b.gif");
		tmc_over = newImage("image/navi/navi01b.gif");
		midnight_over = newImage("image/navi/navi05b.gif");
		taboo_over = newImage("image/navi/navi03b.gif");
		cinemax_over = newImage("image/navi/navi04b.gif");
		junk_over = newImage("image/navi/navi07b.gif");
		dvd_over = newImage("image/navi/navi08b.gif");
		renka_over = newImage("image/navi/navi09b.gif");
		tmccopy_over = newImage("image/tmc_copy2.gif");
		taboocopy_over = newImage("image/taboo_copy2.gif");
		cinemaxcopy_over = newImage("image/cinemax_copy2.gif");
		dvd_tmc_over = newImage("image/navi/navi01b.gif");
		dvd_midnight_over = newImage("image/navi/navi05b.gif");
		dvd_taboo_over = newImage("image/navi/navi03b.gif");
		dvd_oscar_over = newImage("image/navi/navi07b.gif");
		preloadFlag = true;
	}
}