Need a simple script - input box to link

hi
I need a script that will convert searched words from the search box/input box to a link.

For example if I type "1234" in the search box and click on search button I want the page immediately redirect to :
http://xyz.com/?q=1234

Please help me
If anybody knows paste it here
Thanks

 

<form method="get" action="http://xyz.com/">
<input type="text" name="q">
<input type="submit" value="Submit">
</form>

 

Thanks lslars31
I put this script on php page and it works great

 

Awesome, glad I could help out.

 

how can i do the same thing without using form method? just using JavaScript..