in src/main/js/bmap.js [228:240]
BrowserMap.getDeviceGroupsInRankingOrder = function () {
var dgs = [],
dg;
for (dg in deviceGroups) {
if (deviceGroups.hasOwnProperty(dg)) {
dgs.push(deviceGroups[dg]);
}
}
dgs.sort(function(a, b) {
return a.ranking - b.ranking;
});
return dgs;
};