/* * Returns an new XMLHttpRequest object, or false if the browser * doesn't support it */function newXMLHttpRequest() {  var xmlreq = false;  // Create XMLHttpRequest object in non-Microsoft browsers  if (window.XMLHttpRequest) {    xmlreq = new XMLHttpRequest();  } else if (window.ActiveXObject) {        try {      // Try to create XMLHttpRequest in later versions      // of Internet Explorer      xmlreq = new ActiveXObject("Msxml2.XMLHTTP");    } catch (e1) {      // Failed to create required ActiveXObject            try {        // Try version supported by older versions        // of Internet Explorer              xmlreq = new ActiveXObject("Microsoft.XMLHTTP");      } catch (e2) {        // Unable to create an XMLHttpRequest by any means        xmlreq = false;      }    }  }return xmlreq;} /*	* Returns a function that waits for the specified XMLHttpRequest	* to complete, then passes it XML response to the given handler function.  * req - The XMLHttpRequest whose state is changing  * responseXmlHandler - Function to pass the XML response to  */ function getReadyStateHandler(req, responseXmlHandler) {   // Return an anonymous function that listens to the XMLHttpRequest instance   return function () {//     alert("in getReadyStateHandler: " + req.readyState + " : " + req.status);     // If the request's status is "complete"     if (req.readyState == 4) {              // Check that we received a successful response from the server       if (req.status == 200) {         // Pass the XML payload of the response to the handler function.         //responseXmlHandler(req.responseXML);         responseXmlHandler(req.responseText);        } else {         // An HTTP problem has occurred         // alert("HTTP error "+req.status+": "+req.statusText);       }     }   } }