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) {
		index1_03_over = newImage("images/index1_03-over.jpg");
		index1_05_over = newImage("images/index1_05-over.jpg");
		index1_06_over = newImage("images/index1_06-over.jpg");
		index1_07_over = newImage("images/index1_07-over.jpg");
		index1_08_over = newImage("images/index1_08-over.jpg");
		index1_09_over = newImage("images/index1_09-over.jpg");
		index1_10_over = newImage("images/index1_10-over.jpg");
		index1_11_over = newImage("images/index1_11-over.jpg");
		index1_12_over = newImage("images/index1_12-over.jpg");
		index1_13_over = newImage("images/index1_13-over.jpg");
		index1_14_over = newImage("images/index1_14-over.jpg");
		index_16_over  = newImage("images/index1_16-over.jpg");
		preloadFlag = true;
	}
}