how to grab and store executed value of url using php

Hi all i got a url([url]http://map.geoup.com/geoup?template=CountryName[/url]) that if i paste it in browser address bar it will return for me a value like this:
[B]document.write(‘usa’);[/B]

Note: the url is external url

I want to grab only countryname value using php and store it in variable and later insert it in to mysql db. Could an expert show me how i can store the countryname into variable.
My intention is that when a user visits my php page it writes his country name to mysql db so i want the url to be executed within my php and possibly i be print that value too. i be happy if show me how i can execute the url with in my php code.

if if use java script like this :

[B]<script language=”Javascript” src=”http://map.geoup.com/geoup?template=CountryName”></script>[/B]

it will print countryname alone for me but i do know if i can use this with in my php and some how set it up equal to
a varible.Thanks

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