gistfile1.txt

function getMapBounds(region) {
var b = {};
b.northWest = {}; b.northEast = {};
b.southWest = {}; b.southEast = {};

b.northWest.lat = parseFloat(region.latitude) + 
    parseFloat(region.latitudeDelta) / 2.0;
b.northWest.lng = parseFloat(region.longitude) - 
    parseFloat(region.longitudeDelta) / 2.0;

b.southWest.lat = parseFloat(region.latitude) - 
    parseFloat(region.latitudeDelta) / 2.0;
b.southWest.lng = parseFloat(region.longitude) - 
    parseFloat(region.longitudeDelta) / 2.0;

b.northEast.lat = parseFloat(region.latitude) + 
    parseFloat(region.latitudeDelta) / 2.0;
b.northEast.lng = parseFloat(region.longitude) + 
    parseFloat(region.longitudeDelta) / 2.0;

b.southEast.lat = parseFloat(region.latitude) - 
    parseFloat(region.latitudeDelta) / 2.0;
b.southEast.lng = parseFloat(region.longitude) + 
    parseFloat(region.longitudeDelta) / 2.0;

return b;
}