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Код

<html>
  <head>
    <script type='text/javascript'>
      var req     = null;
      var console = null;
      
      var READY_STATE_UNINITIALIZED = 0;
      var READY_STATE_LOADING       = 1;
      var READY_STATE_LOADED        = 2;
      var READY_STATE_INTERACTIVE   = 3;
      var READY_STATE_COMPLETE      = 4;
      
      function sendRequest(url,params,HttpMethod){
        if(!HttpMethod){
          HttpMethod="GET";
        }
        req = initXMLHTTPRequest();
        if(req){
          req.onreadystatechange = onReadyState;
          req.open(HttpMethod,url,true);
          req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
          req.send(params);
        }
      }
      
      function initXMLHTTPRequest(){
        var xRequest = null;
        // Инициализация объекта запроса
        if (window.XMLHttpRequest){
          xRequest = new XMLHttpRequest();
        } else if (window.ActiveXObject){
          xRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        return xRequest;
      }
      
      // Определение обработчика обратного вызова
      function onReadyState(){
        var ready = req.readyState;
        var data = null;
        // Проверка readyState
        if (ready == READY_STATE_COMPLETE){
          // Чтение данных ответа
          data = req.responseText;
        }else{
          data = "loading...["+ready+"]";
        }
        toConsole(data);
      }
      
      function toConsole(data){
        if (console != null){
          var newline = document.createElement("div");
          console.appendChild(newline);
          var txt = document.createTextNode(data);
          newline.appendChild(txt);
        }
      }
      window.onload = function(){
      console = document.getElementById('console');
      sendRequest("http://www.google.ru");
      }
    </script>
  </head>
  
  <body>
    
    <div id='console'></div>
  
  </body>
</html>