var di = 1;
//начало цикла
window["marker" + di ] = new google.maps.Marker({
icon: checkType(currtype),
position: results[0].geometry.location,
map: map
});
di++;
console.log(????);
//конец цикла
var maps = {};
maps["marker" + 0] = ...;
maps["marker" + 1] = ...;
for (var prop in maps) {
console.log(maps[prop]);
}