title: Script doesn't open the right link
body: <p>My code:</p>
  
  <pre><code>var link;
  var wid;
  chrome.tabs.getSelected(null,function(tab) {
      link = tab.url;
  });
  http.open('get', 'http://surfkid.redio.de/linki.php?site_url='+link);
  function insertReply() {
  
  }
  http.onreadystatechange = insertReply();
  http.send(null);
  </code></pre>
  
  <p>This don't work, but I don't know why.</p>