function showImage (imgID, imgSize) {
		var imgX, imgY, imgA, options;
		var wsize = screen.availWidth;
		var hsize = screen.availHeight ;
		imgA = imgSize.split("x");
		imgX = parseInt(imgA[0]) + 30;
		imgY = parseInt(imgA[1]) + 150;
		if (imgX > wsize) {imgX = wsize;}
		if (imgY > hsize) {imgY = hsize;}
		options = "width=" + imgX + ",height=" + imgY + ",scrollbars=yes,toolbars=no,location=no,status=no,menubar=no";
		if (navigator.appName=="Netscape") {options += ",screenX=" + (wsize-imgX)/2 + ",screenY=" + (hsize-imgY)/2;} else {options += ",left=" + (wsize-imgX)/2 + ",top=" + (hsize-imgY)/2};
		viewer = window.open("imageview.asp?id=" + imgID, "viewer", options);
		return false;
	}