function start()
{
    var strRequest = "SomeRequestHere";
         
   WScript.Echo("Sending request...");
   strResult = doRequest(strRequest); 
   WScript.Echo(strResult);   
   WScript.Echo("Done!");   
}
 

function doRequest(sReqBody)
{
 
    var HTTPREQUEST_PROXYSETTING_DEFAULT = 0;
    var HTTPREQUEST_PROXYSETTING_DIRECT = 1;
    var HTTPREQUEST_PROXYSETTING_PROXY = 2;
    var strResult;
 
    try
 {
// Create the WinHTTPRequest ActiveX Object.
     var WinHttpReq = new ActiveXObject("WinHttp.WinHttpRequest.5.1");
     
//Set Proxy Server if necessary
      WinHttpReq.SetProxy( HTTPREQUEST_PROXYSETTING_PROXY, "proxy.server.ru:3128", "*.e-i.ru");
     
     
//Create an HTTP request
 WinHttpReq.Open("POST", "https://www.rb-ei.com/cpuEnquiry.asp", true);     
    
//Select a client certificate
//CN = Иванов Иван Иванович
 
      WinHttpReq.SetClientCertificate("CURRENT_USER\\My\\Иванов Иван Иванович");
      WScript.Echo("Certificate is: " + "CURRENT_USER\\My\\Иванов Иван Иванович");
      
       
     WinHttpReq.SetRequestHeader("Content-Type","application/x-www-form-urlencoded; Charset=windows-1251");
          
//  Send the HTTP request
     WinHttpReq.Send(sReqBody);
     WinHttpReq.WaitForResponse();
           
     WScript.Echo("Request status: " + WinHttpReq.StatusText);
     strResult = WinHttpReq.ResponseText;
     WScript.Echo(strResult);
 }
    catch (objError)
 {
     var err = objError + "\n";
     err += "WinHTTP returned error: " + (objError.number & 0xFFFF).toString() + "\n\n";
     err += objError.description;
     WScript.Echo(err);
 }
  
//Return the response text
    return strResult;
}
 

//Start the script
 
start();

	var request = new XMLHttpRequest();

	request.open("GET", "https://www.rb-ei.com/cpuEnquiry.asp", false);
	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; Charset=windows-1251");
	request.send(sReqBody);

	if (request.readyState == 4) {
		if (request.status == 200) {
			//Success
			var svcResponse = request.responseText;
		}
		else {
			//Failure
		}
	}