<html>
<head>
<title> Image Popup</title>

 <script language="javascript" type="text/javascript">

 function newWindow (imgNumber){
 imgName="tc" + imgNumber + ".jpg"     // image name eg. tc1.jpg
 imgWindow=window.open(imgName, "imgwin", " width=420, height=340, scrollbars=no") 
 }

</script>
</head>

<body bgcolor="white">

 <h1> Double click on image for full-size version</h1>
 <img src="tc1.jpg" width="160" height="120" hspace="10" border="3" alt="thumbnail 0" onDblclick="newWindow(1)">
 <img src="tc2.jpg" width="160" height="120" hspace="10" border="3" alt="thumbnail 1" onDblclick="newWindow(2)">
 <img src="tc3.jpg" width="160" height="120" hspace="10" border="3" alt="thumbnail 2" onDblclick="newWindow(3)">
</body>
</html>