/*
 * 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 () {

     // 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);

       } else {

         // An HTTP problem has occurred
         alert("HTTP error "+req.status+": "+req.statusText);
       }
     }
   }
 }
String.prototype.trim  =  function()
{
  return  this.replace(/(^\s*)|(\s*$)/g,  "");
}