function startCity() {
    var obj = document.form1;
    var province = obj.sprovince.options[obj.sprovince.selectedIndex].value;
    var req = newXMLHttpRequest();
    req.onreadystatechange = getReadyStateHandler(req, getCity); 
    req.open("POST", "CitySerlet", true);
    req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");			
   	req.send("province="+province);
}
function getCity(xlXML) { 
    var root = xlXML.getElementsByTagName("acct")[0];
    if (root != null) {
        var city = document.getElementById("scity");
        city.innerHTML = "";
        var sub = root.getElementsByTagName("city");
        for (var i = 0; i < sub.length; i++) {
            var subCity = document.getElementById('subCity').value;
            var o = document.createElement("OPTION");
            o.value =sub[i].getElementsByTagName("citycode")[0].firstChild.nodeValue;
            if(subCity==o.value ){
            	o.selected="selected"
            }	
            o.text = unescape(sub[i].getElementsByTagName("cityname")[0].firstChild.nodeValue);
            city.add(o);
        }
		} 
	}