I have create a HTML page with some JavaScript code. Here is the code

```
   <script type="text/javascript">
     function doIt(){
        window.location = document.getElementById('url').value;
    }
   </script>
   <input type="text" id="url" />

```

I want that when some one press the enter after type the URL. The page redirect to the given URL automatically. How i can do this? Please suggest me some code