<!--

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) {
		b_13_over = newImage("images/b_13-over.gif");
		b_13_down = newImage("images/b_13-down.gif");
		b_14_over = newImage("images/b_14-over.gif");
		b_14_down = newImage("images/b_14-down.gif");
		b_15_over = newImage("images/b_15-over.gif");
		b_15_down = newImage("images/b_15-down.gif");
		b_16_over = newImage("images/b_16-over.gif");
		b_16_down = newImage("images/b_16-down.gif");
		b_17_down = newImage("images/b_17-down.gif");
		b_17_over = newImage("images/b_17-over.gif");
		b_18_down = newImage("images/b_18-down.gif");
		b_18_over = newImage("images/b_18-over.gif");
		preloadFlag = true;
	}
}

// -->