Return a XMLHttpRequest objects

getXMLHttpRequest.js

/**
 * Return a XMLHttpRequest objects 
 * @return {Object} XMLHttpRequest
 */
function getXMLHttpRequest() {
	if (window.XMLHttpRequest || window.ActiveXObject) {
    if (window.XMLHttpRequest) {
      return new XMLHttpRequest();
    } else {
      try {
       return new ActiveXObject('Msxml2.XMLHTTP');
      } catch (e) {
       return new ActiveXObject('Microsoft.XMLHTTP');
      }
    }
	}
	console.log('Browser does not support AJAX.');
	return null;
}