How to redirect web page by html select tag

If you want to realize this function: a html select contains some values, you want to redirect different html web page by user’s selection. ¬†How to do this by a simple way? we recommend to use javascrip.Look at source code below:

<select name="select" onchange="window.location=this.options[this.selectedIndex].value">
 <option value="#">Location</option>
 <option value="1">China</option>
 <option value="2">USA</option>
 <option value="3">Japan</option>
 <option value="4">Indian</option>
 <option value="5">England</option>
 </select>