I am looking for a tutorial what can show me that how can i transfer one select box content to another with javascript

http://www.bellonetwork.com.au/JoinUs.aspx here you can see what i am talking about.

in that form when you select a desired location then there is two select boxes below and you can transfer contents with arrow keys from one to another.

Hey this will help you.
http://www.dotnetspider.com/resource...o-TextBox.aspx

thanks