JS调用webservice

function RequestWebService() {
var c = document.getElementById('UserName').value;
var pwd = document.getElementById('UserPwd').value;
var data;
data = '<?xml version="1.0" encoding="utf-8"?>';
data = data + '<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">';
data = data + '<soap12:Body>';
data = data + '<UKLogin xmlns="http://123.k.tlsw.net/" >';
data = data + '<UkNo>' + c;
data = data + '</UkNo>';
data = data + '<UkPwd>' + pwd;
data = data + '</UkPwd>';
data = data + "</UKLogin>";
data = data + '</soap12:Body>';
data = data + '</soap12:Envelope>';
//创建异步对象
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("POST", "http://192.168.3.66:8001/UKWebService.asmx", false);
xmlhttp.SetRequestHeader("Content-Type", "application/soap+xml");
xmlhttp.Send(data);

var status = xmlhttp.status;
if (status == 200) {
var xmlData = xmlhttp.responseXML;
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async = false;
xmlDoc.loadXML(xmlhttp.responseText);
xmlData = xmlDoc;
var result = xmlData.text;
//var result = xmlhttp.responseText;
var aaa = decodeURIComponent(result);
document.getElementById("data").innerHTML = aaa;
var temp = eval('(' + aaa + ')');
}

}