function cityChange(region)
{
//alert(region);
if(region == 0) {document.getElementById('city').innerHTML = '';}
if(region == 1) {document.getElementById('city').innerHTML = '';}
if(region == 2) {document.getElementById('city').innerHTML = '';}
if(region == 3) {document.getElementById('city').innerHTML = '';}
if(region == 4) {document.getElementById('city').innerHTML = '';}
if(region == 5) {document.getElementById('city').innerHTML = '';}
if(region == 6) {document.getElementById('city').innerHTML = '';}
if(region == 7) {document.getElementById('city').innerHTML = '';}
if(region == 8) {document.getElementById('city').innerHTML = '';}
if(region == 9) {document.getElementById('city').innerHTML = '';}
if(region == 10) {document.getElementById('city').innerHTML = '';}
if(region == 11) {document.getElementById('city').innerHTML = '';}
if(region == 12) {document.getElementById('city').innerHTML = '';}
if(region == 13) {document.getElementById('city').innerHTML = '';}
if(region == 14) {document.getElementById('city').innerHTML = '';}
if(region == 15) {document.getElementById('city').innerHTML = '';}
if(region == 16) {document.getElementById('city').innerHTML = '';}
if(region == 17) {document.getElementById('city').innerHTML = '';}
if(region == 18) {document.getElementById('city').innerHTML = '';}
if(region == 19) {document.getElementById('city').innerHTML = '';}
if(region == 20) {document.getElementById('city').innerHTML = '';}
if(region == 21) {document.getElementById('city').innerHTML = '';}
if(region == 22) {document.getElementById('city').innerHTML = '';}
if(region == 23) {document.getElementById('city').innerHTML = '';}
if(region == 24) {document.getElementById('city').innerHTML = '';}
if(region == 25) {document.getElementById('city').innerHTML = '';}
if(region == 26) {document.getElementById('city').innerHTML = '';}
}