HOW TO CREATE LINK WHEN OPTION SELECT IN HTML

How to create link in dropdown in HTML.It is so simple to create you can see the given example

<select onchange="javascript:Select(this)"> <option value="home">Home</option> <option value="text">Contact</option> </select> <script type="text/javascript"> function Select(elm) { window.location = elm.value+".php"; } </script>