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) {
		home_06_over = newImage("images/home_06-over.gif");
		home_07_over = newImage("images/home_07-over.gif");
		home_08_over = newImage("images/home_08-over.gif");
		home_09_over = newImage("images/home_09-over.gif");
		home_22_over = newImage("images/home_22-over.gif");
		home_29_over = newImage("images/home_29-over.gif");
		home_33_over = newImage("images/home_33-over.gif");
		home2_32_over = newImage("images/home2_32-over.gif");
		home2_36_over = newImage("images/home2_36-over.gif");
		bt_store_over = newImage("images/bt_store-over.gif");
		preloadFlag = true;
	}
}