Script to Detect if Users are from US or Foreign?

I have some products that are American only that I want to promote, so I need to send foreign visitors (about 50% of my visitors) to alternate landing pages. Is there any script or something that can detect that then send people to the right pages?

 

Have a look at this:
wwwDOTmaxmindDOTcom/app/javascript_city

Replace DOT with . i cant post links yet.

If you want I can do the script for you.

Done Script:
cyberstuffDOTinfo/cdemo/

 

You can use maxmind API to determine this.

 

Well both of these will tell which country someone is from, but what do I need to send them to different pages based on country?

 

Yes you can use php to redirect based on the country, not that difficult.

 

PHP's header() function will do this for you.

 

thats what my demo dose
I can give you the code if you want