Google Maps help: Country.

To determine which default Google Map should be displayed when your web page is loaded, do the following:
  1. Select a country.
  2. Press the "Generate code" button.
  3. Zoom and/or move the map until you are satisfied and press again the "Generate code" button.
  4. The baloon marker, indicating the country, will only be displayed if the field "Enter info window text" contains a text.
  5. You can repeat steps 1-3 as many times.