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) {
		layout_07_over = newImage("images/layout_07-over.jpg");
		layout_08_over = newImage("images/layout_08-over.jpg");
		layout_08_layout_07_over = newImage("images/layout_08-layout_07_over.jpg");
		layout_09_over = newImage("images/layout_09-over.jpg");
		layout_09_layout_08_over = newImage("images/layout_09-layout_08_over.jpg");
		layout_10_over = newImage("images/layout_10-over.jpg");
		layout_10_layout_09_over = newImage("images/layout_10-layout_09_over.jpg");
		layout_11_over = newImage("images/layout_11-over.jpg");
		layout_11_layout_10_over = newImage("images/layout_11-layout_10_over.jpg");
		layout_12_over = newImage("images/layout_12-over.jpg");
		layout_12_layout_11_over = newImage("images/layout_12-layout_11_over.jpg");
		layout_13_layout_12_over = newImage("images/layout_13-layout_12_over.jpg");
		layout_13_over = newImage("images/layout_13-over.jpg");
		layout_14_layout_13_over = newImage("images/layout_14-layout_13_over.jpg");
		layout_16_layout_12_over = newImage("images/layout_16-layout_12_over.jpg");
		layout_16_layout_11_over = newImage("images/layout_16-layout_11_over.jpg");
		layout_16_layout_10_over = newImage("images/layout_16-layout_10_over.jpg");
		layout_16_layout_09_over = newImage("images/layout_16-layout_09_over.jpg");
		layout_16_layout_08_over = newImage("images/layout_16-layout_08_over.jpg");
		layout_16_layout_07_over = newImage("images/layout_16-layout_07_over.jpg");
		layout_16_layout_13_over = newImage("images/layout_16-layout_13_over.jpg");
		preloadFlag = true;
	}
}
// JavaScript Document