the jquery post method is not working?
<p>here is the code</p>

<pre><code>&lt;html&gt;
&lt;body&gt;
&lt;script type="text/javascript" src="jquery-1.3.2.js"&gt;&lt;/script&gt;
&lt;script type="text/javascript"&gt;

$('document').ready(function(){

$('#submit').click(function(){

var username=$('#user').val();

$.post('http://localhost:8080/verify/comment.php',{user:username},function(return_data){
alert(return_data);
});
});

});
&lt;/script&gt;
Username:&lt;input type="text" id="user"/&gt;

&lt;input type="button" id="submit" value="submit"/&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>comment.php</p>

<pre><code> &lt;?php

echo 'welcome';
?&gt;
</code></pre>

<p>it displays an empty alert message.. i cant get the value "welcome" in alert message........
any suggestion.......</p>
