I'm trying to add a link at the bottom of google's home page using javascript and greasemonkey in firefox, but I can't make it work:

```
// ==UserScript==
// @name testing greasemonkey
// @include http://*google.com/
// ==/UserScript==    

document.write('<a href="http://bing.com">Go to Bing</a> ');

```

Can anyone help me?