function ajaxAddNewsletter(){

       var ajaxRequest;  // The variable that makes Ajax possible!
       try{
              // Opera 8.0+, Firefox, Safari
              ajaxRequest = new XMLHttpRequest();
       } catch (e){
              // Internet Explorer Browsers
              try{
                     ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
              } catch (e) {
                     try{
                           ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
                     } catch (e){
                           // Something went wrong
                          alert("Your browser does not support xml requests, please upgrade.");

                           return false;
                     }
              }
       }

       // Create a function that will receive data sent from the server
       ajaxRequest.onreadystatechange = function(){

              if(ajaxRequest.readyState == 4){
					
                     alert(ajaxRequest.responseText);
              }
       }
       var subscribe_news_email = document.getElementById('newsletter_ajax_add').value;

       var queryString = "?newsletter_ajax_add=" + subscribe_news_email;

       ajaxRequest.open("GET", "ajax_newsletter_add.php" + queryString, true);

       ajaxRequest.send(null); 
	 
}