var sajax_debug_mode = false;
      var sajax_request_type = "GET";
      var sajax_target_id = "";
      var sajax_failure_redirect = "";
      
      function sajax_debug(text) {
         if (sajax_debug_mode)
            alert(text);
      }
      
       function sajax_init_object() {
          sajax_debug("sajax_init_object() called..")
          
          var A;
          
          var msxmlhttp = new Array(
            'Msxml2.XMLHTTP.5.0',
            'Msxml2.XMLHTTP.4.0',
            'Msxml2.XMLHTTP.3.0',
            'Msxml2.XMLHTTP',
            'Microsoft.XMLHTTP');
         for (var i = 0; i < msxmlhttp.length; i++) {
            try {
               A = new ActiveXObject(msxmlhttp[i]);
            } catch (e) {
               A = null;
            }
         }
          
         if(!A && typeof XMLHttpRequest != "undefined")
            A = new XMLHttpRequest();
         if (!A)
            sajax_debug("Could not create connection object.");
         return A;
      }
      
      var sajax_requests = new Array();
      
      function sajax_cancel() {
         for (var i = 0; i < sajax_requests.length; i++) 
            sajax_requests[i].abort();
      }
      
      function sajax_do_call(func_name, args) {
         var i, x, n;
         var uri;
         var post_data;
         var target_id;
         
         sajax_debug("in sajax_do_call().." + sajax_request_type + "/" + sajax_target_id);
         target_id = sajax_target_id;
         if (typeof(sajax_request_type) == "undefined" || sajax_request_type == "") 
            sajax_request_type = "GET";
         
         uri = "/e107_plugins/titelupdate/xml.php";
         if (sajax_request_type == "GET") {
         
            if (uri.indexOf("?") == -1) 
               uri += "?rs=" + escape(func_name);
            else
               uri += "&rs=" + escape(func_name);
            uri += "&rst=" + escape(sajax_target_id);
            uri += "&rsrnd=" + new Date().getTime();
            
            for (i = 0; i < args.length-1; i++) 
               uri += "&rsargs[]=" + escape(args[i]);

            post_data = null;
         } 
         else if (sajax_request_type == "POST") {
            post_data = "rs=" + escape(func_name);
            post_data += "&rst=" + escape(sajax_target_id);
            post_data += "&rsrnd=" + new Date().getTime();
            
            for (i = 0; i < args.length-1; i++) 
               post_data = post_data + "&rsargs[]=" + escape(args[i]);
         }
         else {
            alert("Illegal request type: " + sajax_request_type);
         }
         
         x = sajax_init_object();
         if (x == null) {
            if (sajax_failure_redirect != "") {
               location.href = sajax_failure_redirect;
               return false;
            } else {
               sajax_debug("NULL sajax object for user agent:\n" + navigator.userAgent);
               return false;
            }
         } else {
            x.open(sajax_request_type, uri, true);
            // window.open(uri);
            
            sajax_requests[sajax_requests.length] = x;
            
            if (sajax_request_type == "POST") {
               x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
               x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            }
         
            x.onreadystatechange = function() {
               if (x.readyState != 4) 
                  return;

               sajax_debug("received " + x.responseText);
            
               var status;
               var data;
               var txt = x.responseText.replace(/^\s*|\s*$/g,"");
               status = txt.charAt(0);
               data = txt.substring(2);

               if (status == "") {
                  // let's just assume this is a pre-response bailout and let it slide for now
               } else if (status == "-") 
                  alert("Error: " + data);
               else {
                  if (target_id != "") 
                     document.getElementById(target_id).innerHTML = eval(data);
                  else {
                     try {
                        var callback;
                        var extra_data = false;
                        if (typeof args[args.length-1] == "object") {
                           callback = args[args.length-1].callback;
                           extra_data = args[args.length-1].extra_data;
                        } else {
                           callback = args[args.length-1];
                        }
                        callback(eval(data), extra_data);
                     } catch (e) {
                        sajax_debug("Caught error " + e + ": Could not eval " + data );
                     }
                  }
               }
            }
         }
         
         sajax_debug(func_name + " uri = " + uri + "/post = " + post_data);
         x.send(post_data);
         sajax_debug(func_name + " waiting..");
         delete x;
         return true;
      }
      
            
      // wrapper for update      
      function x_update() {
         sajax_do_call("update",
            x_update.arguments);
      }
      
           function refreshTimer(t) {
       setTimeout("update()",t*1000);
     }
     function update() {
       x_update(update_cb);
     }
     function update_cb(result) {
       eval(result);
       refreshTimer(10); 
     }