Making Navigation from drop down select tag?

Making Navigation from drop down select tag?

I need to make my navigation of this website work from a drop down select tag. I realise this
will involve a bit a jQuery. this is how my HTML looks so far :

  1. <div id="top_nav">
  2.  <select>
  3.  <option value="">1</option>
  4.  <option value="">2</option>
  5.  <option value="">3</option>
  6.  <option value="">4</option>
  7.  <option value="">5</option>
  8.  <option value="">Contact</option>
  9. </select>
So when user selects 2 for example, it takes them to page 2 of the site. Any help with this much appreciated.

Thanks Bas