title: The jquery POST method is not working?
body: <p>Here is the html and jQuery part:</p>
  
  <pre><code>&lt;html&gt;
    &lt;head&gt;
      &lt;script type="text/javascript" src="jquery-1.3.2.js"&gt;&lt;/script&gt;
    &lt;/head&gt;
  
    &lt;body&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 can't get the value "welcome" in alert message........<br>
  Any suggestion.......?</p>