function createAJAXObject()
{
// Create a boolean variable to check for a valid Internet Explorer instance.
var xmlhttp = false;

  // Check if we are using IE.
  try {
     // If the Javascript version is greater than 5.
     xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
     // If not, then use the older active x object.
     try {
        //If we are using Internet Explorer.
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
     } catch (e) {
        // Else we must be using a non-IE browser.
        xmlhttp = false;
     }
  }
  
  // If we are using a non-IE browser, create a javascript instance of the object.
  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
     xmlhttp = new XMLHttpRequest();
  }
  
  return xmlhttp;
}