title: javascript window.open unspecified error
body: <p>I have a very simple javascript which launches a named window, so that I can close it later.</p>
  
  <p>Most of the time this code works perfectly, but I've received reports of "unspecified error" messages on occasion. Once the message appears, it occurs every time this function is run until the system is restarted. This is occ</p>
  
  <pre><code>function openWin() {
  
    try{
        MsgWindow=window.open('http://www.google.com','MsgWindow','scrollbars=1,resizable=1',true);
    } 
  
    catch(e)   {InsertError(e.description);}
  }
  </code></pre>