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) {
		main_04_over = newImage("images/main_04-over.jpg");
		main_05_over = newImage("images/main_05-over.jpg");
		main_06_over = newImage("images/main_06-over.jpg");
		main_07_over = newImage("images/main_07-over.jpg");
		main_09_over = newImage("images/main_09-over.jpg");
		main_10_main_06_over = newImage("images/main_10-main_06_over.jpg");
		main_10_over = newImage("images/main_10-over.jpg");
		main_11_main_06_over = newImage("images/main_11-main_06_over.jpg");
		main_11_over = newImage("images/main_11-over.jpg");
		main_13_main_09_over = newImage("images/main_13-main_09_over.jpg");
		main_14_main_04_over = newImage("images/main_14-main_04_over.gif");
		main_14_main_05_over = newImage("images/main_14-main_05_over.gif");
		main_14_main_06_over = newImage("images/main_14-main_06_over.gif");
		main_14_main_07_over = newImage("images/main_14-main_07_over.gif");
		main_14_main_09_over = newImage("images/main_14-main_09_over.gif");
		main_14_main_10_over = newImage("images/main_14-main_10_over.gif");
		main_14_main_11_over = newImage("images/main_14-main_11_over.gif");
		preloadFlag = true;
	}
}