function showLocalities() {
   document.getElementById('mapLocalityBack').style.display = 'block';
	document.getElementById('mapRegionBack').style.display = 'none';
   document.getElementById('mapDistrictBack').style.display = 'none';
   
   document.getElementById('titleLocality').style.display = 'block';
   document.getElementById('titleRegion').style.display = 'none';
   document.getElementById('titleDistrict').style.display = 'none';

}

function showRegions() {
   document.getElementById('mapLocalityBack').style.display = 'none';
	document.getElementById('mapRegionBack').style.display = 'block';
   document.getElementById('mapDistrictBack').style.display = 'none';
   
   document.getElementById('titleLocality').style.display = 'none';
   document.getElementById('titleRegion').style.display = 'block';
   document.getElementById('titleDistrict').style.display = 'none';
}

function showDistricts() {
   document.getElementById('mapLocalityBack').style.display = 'none';
	document.getElementById('mapRegionBack').style.display = 'none';
   document.getElementById('mapDistrictBack').style.display = 'block';
   
   document.getElementById('titleLocality').style.display = 'none';
   document.getElementById('titleRegion').style.display = 'none';
   document.getElementById('titleDistrict').style.display = 'block';
}