var preloaded = false;
	var on = new Image();
	var off = new Image();

	off.src = 'images/bullet.gif';
	on.src = 'images/bullet_on.gif';
	preloaded = true;

	function SwapImg(img1,img2) {
		if (preloaded == true) {
			img1.src = img2.src;
		} else {
			PreloadImg();
			if (preloaded == true) {
				img1.src = img2.src;
			}
		}
	}

	function OpenWindow(url) {
		window.open(url,'','width=480,height=500,toolbar=no,status=no,directories=no,location=no,menubar=no,copyhistory=no,resizable=yes,scrollbars=yes');
	}