function drawMap(oDiv, layer, zoom, ver) {
switch (layer) {
case "1":
layer = "voice";
break;
case "2":
layer = "data";
break;
case "3":
layer = "datacombined";
break;
case "4":
layer = "lte";
break;
}
switch (zoom) {
case "4":
xFrom = 7
xTo = 8
yFrom = 4
yTo = 5
break;
case "5":