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) {
		navigation_01_over = newImage("/images/navigation_01-over.gif");
		navigation_04_navigation_06_over = newImage("/images/navigation_04-navigation_06.jpg");
		navigation_04_navigation_07_over = newImage("/images/navigation_04-navigation_07.jpg");
		navigation_04_navigation_08_over = newImage("/images/navigation_04-navigation_08.jpg");
		navigation_04_navigation_09_over = newImage("/images/navigation_04-navigation_09.jpg");
		navigation_04_navigation_10_over = newImage("/images/navigation_04-navigation_10.jpg");
		navigation_06_over = newImage("/images/navigation_06-over.gif");
		navigation_07_navigation_06_over = newImage("/images/navigation_07-navigation_06.gif");
		navigation_07_over = newImage("/images/navigation_07-over.gif");
		navigation_08_navigation_07_over = newImage("/images/navigation_08-navigation_07.gif");
		navigation_08_over = newImage("/images/navigation_08-over.gif");
		navigation_09_navigation_08_over = newImage("/images/navigation_09-navigation_08.gif");
		navigation_09_over = newImage("/images/navigation_09-over.gif");
		navigation_10_navigation_09_over = newImage("/images/navigation_10-navigation_09.gif");
		navigation_10_over = newImage("/images/navigation_10-over.gif");
		navigation_11_navigation_10_over = newImage("/images/navigation_11-navigation_10.gif");
		navigation_12_navigation_10_over = newImage("/images/navigation_12-navigation_10.gif");
		navigation_12_over = newImage("/images/navigation_12-over.gif");
		navigation_13_navigation_10_over = newImage("/images/navigation_13-navigation_10.gif");
		navigation_13_navigation_12_over = newImage("/images/navigation_13-navigation_12.gif");
		buttons_01_over = newImage("/images/buttons_01-over.gif");
		buttons_03_over = newImage("/images/buttons_03-over.gif");
		preloadFlag = true;
	}
}