function Go(x)
   {
    if(x == "nothing")
    {
      document.forms[0].reset();
      document.forms[0].elements[0].blur();
      document.forms[0].elements[0].defaultValue = "List of articles";
      return;
    }
    else if(x == "end") top.location.href = parent.frames[1].location;
    else
    {
      parent.location.href = x;
      document.forms[0].reset();
      document.forms[0].elements[0].blur();	  
    }
  }