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_ImageMap_06_over = newImage("navgraphics/navigation_01-ImageMap_06_o.jpg");
		navigation_01_ImageMap_03_over = newImage("navgraphics/navigation_01-ImageMap_03_o.jpg");
		navigation_01_ImageMap_09_over = newImage("navgraphics/navigation_01-ImageMap_09_o.jpg");
		navigation_01_ImageMap_01_over = newImage("navgraphics/navigation_01-ImageMap_01_o.jpg");
		navigation_01_ImageMap_04_over = newImage("navgraphics/navigation_01-ImageMap_04_o.jpg");
		navigation_01_ImageMap_05_over = newImage("navgraphics/navigation_01-ImageMap_05_o.jpg");
		navigation_01_ImageMap_07_over = newImage("navgraphics/navigation_01-ImageMap_07_o.jpg");
		navigation_01_ImageMap_08_over = newImage("navgraphics/navigation_01-ImageMap_08_o.jpg");
		navigation_01_ImageMap_10_over = newImage("navgraphics/navigation_01-ImageMap_10_o.jpg");
		navigation_01_ImageMap_02_over = newImage("navgraphics/navigation_01-ImageMap_02_o.jpg");
		preloadFlag = true;
	}
}