<html>
<head>
</head>
<body>
This tests whether alt text is shown for image-type form input elements with 
no src attribute. You should see "Success" twice, followed by a blue rectangle.
<p>
<form>
<input type="image" alt="Success"><br>
<input type="image" alt="Success" width="100" height="50" border="1"><br>

<input type="image" src="resources/blue_rect.jpg" alt="FAILED!"><br>
</body>
</html>