Add Text on Image

Add Text on Image

How do I add text on an image using the .html()  ?  Please see code below:  

<!DOCTYPE html>
<html>
<head>
</head>
<body>

<h2>JQuery Lab</h2>

<div id="Tile1">
<div><p /></div>
<div class="dummy">
<a>
<img width="300" height="60">
</a>
</div>
</div>

<script type"text/javascript">
$(document).ready(function(){
$("#Tile1 .dummy img").attr({'alt':'this is a test', "src":" http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif"});
$("#Tile1 .dummy a").attr({"href":" http://jquery.com/"});
$("#Tile1 .dummy a").html('New test');   //  <-- Add text to image.
$("p").html('Hello World');

});
</script>

</body>
</html>