function ChangeImage(strName, strSource) {
	if (document.images) {
		document.images[strName].src = strSource;
	}
}

function PreloadImages() {
	if (document.images) {
		var objArgs = PreloadImages.arguments;
		var objImg = new Image;
		var intCount;
		for (intCount = 0; intCount < objArgs.length; intCount++) {
			objImg.src = objArgs[intCount];
		}
	}
}