Hi Google geochart Development;

Your API provides the following region options:

   - 005 - (South America)
   - 013 - (Central America)
   - 021 - (North America)
   - 002 - (All of Africa)
   - 017 - (Central Africa)
   - 015 - (Northern Africa)
   - 018 - (Southern Africa)
   - 030 - (Eastern Asia)
   - 034 - (Southern Asia)
   - 035 - (Asia/Pacific region)
   - 143 - (Central Asia)
   - 145 - (Middle East)
   - 150 - (Europe)
   - 151 - (Northern Asia)
   - 154 - (Northern Europe)
   - 155 - (Western Europe)
   - 039 - (Southern Europe

I've seen references to support of resolution: "continents". So, if a user 
clicks on a continent we have no region code that will allow us to display 
the countries on that continent. Or as a second choice, is there any way we 
can use this list of regions to divide the world into unique regions: for 
example, let's say I display my world map, and if a user clicks on Brazil, 
they get to see map 005 for South America. That works nicely, as would a 
click on Malawi and a display of 002 for all of Africa. Europe is okay too, 
I think. However, once we move into Asia, I have no way of knowing which of 
these regions would be appropriate for displaying a map based upon a click 
anywhere on the Asian continent. At the very least, if Google published 
their mappings of the subregions, I could readily figure them out myself. 
Thanks! Matt  

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