I am using phonegap, and this code loads perfectly in my android mobile.But When i click the button it does not shows the text.

```
    <!DOCTYPE html>
<html>
<head>
  <script type="text/javascript" charset="utf-8" src="cordova-2.4.0.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("#btn1").click(function(){
    $("#test1").text("Hello world!");
  });
});
</script>
</head>

<body>
<p id="test1"></p>
<button id="btn1">Set Text</button>

</body>
</html>

```