var pos; // variable for posting information

function loadXMLPosDoc(url,posData) {
 // branch for native XMLHttpRequest object
 if (window.XMLHttpRequest) {
  pos = new XMLHttpRequest();
  pos.onreadystatechange = processPosChange;
  pos.open("POST", url, false);
  pos.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  pos.send(posData);
  // branch for IE/Windows ActiveX version
 } else if (window.ActiveXObject) {
  pos = new ActiveXObject("Microsoft.XMLHTTP");
  if (pos) {
   pos.onreadystatechange = processPosChange;
   pos.open("POST", url, false);
   pos.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
   pos.send(posData);
  }
 }
}

function grabPosXML (tagName) {
 return pos.responseXML.documentElement.getElementsByTagName(tagName)[0].childNodes[0].nodeValue;
}

function processPosChange() {
 // page loaded "complete"
 if (pos.readyState == 4) {
  // page is "OK"
  if (pos.status == 200) {
   if ( grabPosXML("posStatus") == 'NOTOK' ) { 
    alert('There were problems Sending Email. Please check back in a couple minutes');
   }
  }
 }
}