function ajaxTest() {
  if (window.XMLHttpRequest) {
    var tRequest = new XMLHttpRequest();
  }
  else if (window.ActiveXObject) {
    var tRequest = new ActiveXObject("Msxml2.XMLHTTP");
    if (!tRequest) tRequest = new ActiveXObject("Microsoft.XMLHTTP");
  }
  if (tRequest) {
    return true;
  }
	else {
    return false;
	}
}