title: How to get the instance name of an object
body: <p>I use the below code to write code to query a web method in a specified interval.
  <br /><br />
  now in the this.Poll function I have to do</p>
  
  <pre><code>this.tmo = setTimeout(this.strInstanceName + ".Poll()", this.iInterval);
  </code></pre>
  
  <p>instead of </p>
  
  <pre><code>this.tmo = setTimeout(this.Poll(), this.iInterval);
  </code></pre>
  
  <p>because IE looses the this pointer after setTimeout
  <br />
  So I have to pass the class it's instance name:</p>
  
  <pre><code>    var objPoll = new cPoll("objPoll");
  </code></pre>
  
  <p><br />
  How can I get the instance name without passing it as parameter ?
  <br />
  I want to have it outta there !
  <br /></p>
  
  <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;html xmlns="http://www.w3.org/1999/xhtml" &gt;
  &lt;head&gt;
      &lt;title&gt;Intervall-Test&lt;/title&gt;
      &lt;script type="text/javascript" language="javascript"&gt;
  
  
          function test()
          {
              alert("Test");
              test.tmo = setTimeout(test, 2000);
  
              test.Clear = function()
              {
                  clearTimeout(test.tmo);
              }
          }
  
  
  
  
          function cPoll(strInstanceName)
          {
              this.strInstanceName = strInstanceName ;
              this.iInterval = 2000;
              this.tmo=null;
              this.cbFunction=null;
  
              this.Poll = function()
              {
                  this.cbFunction();
                  this.tmo = setTimeout(this.strInstanceName + ".Poll()", this.iInterval);
              }
  
              this.Start = function(pCallBackFunction, iIntervalParameter)
              {
  
  
                  if(this.tmo != null)
                      this.Stop();
  
                  if(iIntervalParameter &amp;&amp; iIntervalParameter &gt; 0)
                      this.iInterval=iIntervalParameter;
  
                  this.cbFunction=pCallBackFunction;
                  if(this.cbFunction!=null)
                      this.Poll();
                  else
                      alert("Invalid or no callback function specified");
              }
  
              this.Stop = function()
              {
                  if(this.tmo != null)
                  {
                      clearTimeout(this.tmo);
                      this.tmo=null;
                  }
              }
          }
  
  
          function CallBackFunction()
          {
              alert("PollCallBack");
          }
  
          // test();
          // test.Clear();
  
  
          var objPoll = new cPoll("objPoll");
      &lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  &lt;h1&gt;Test&lt;/h1&gt;
  
  &lt;input type="Button" value="Start polling" onclick="objPoll.Start(CallBackFunction,3000);" /&gt;
  &lt;input type="Button" value="Stop polling" onclick="objPoll.Stop();" /&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>