Simple GEOlocation ????

you could either do it with the user's coordinates or by locating the user based on his IP address. then you just switch the buttons with javascript.

Generally, working with user coordinates will be more precise than an IP lookup, but users will have to give their consent for sharing their coordinates and some devices may not be able to give an exact location, so you're best off combining both approaches: get the user's coordinates and use IP location as a fallback.

for the coordinate approach, use the getCurrentPosition() javascript method. if you get coordinates, you will need a reverse geocoding service (lke https://developers.google.com/maps/documentation/geocoding/ ) that will translate the latitude/longitude to an address, including the country.

for the IP approach, just use http://freegeoip.net/ and add /{format}/{ip} to the URL , where format is either csv, xml or json. this will return a field "country_code" that contains the info you're after.

once you have a country code, either by geolocation or IP, just use javascript to modify your content as desired.

also have a look at:

• http://www.geoplugin.com/
• http://www.ipinfodb.com/ip_location_api_json.php
• http://jquery-plugins.net/jqIpLocation/jqIpLocation.html
• http://www.geoplugin.com/webservices/javascript

Thx