function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var map=0; map<changeImages.arguments.length; map+=2) {
			document[changeImages.arguments[map]].src = changeImages.arguments[map+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		index_2_01_ImageMap_03_over = newImage("include/images/index_2_01-ImageMap_03_over.jpg");
		index_2_01_ImageMap_04_over = newImage("include/images/index_2_01-ImageMap_04_over.jpg");
		index_2_01_ImageMap_01_over = newImage("include/images/index_2_01-ImageMap_01_over.jpg");
		index_2_01_ImageMap_02_over = newImage("include/images/index_2_01-ImageMap_02_over.jpg");
		preloadFlag = true;
	} 
}