关于固定弹出窗口位置

这段代码的执行结果无法让弹出窗口不能拖动,请高手指点一二.<script language="javascript">
      function   openMainWin() {   
      form1.target = "mywin";   
      form1.action = "login.asp";   
      form1.method = "post";   
      var newWin=window.open("",form1.target,"top=0,left=0,height="+(screen.availHeight-34)+",width="+(screen.availWidth-8)+",status=no,toolbar=no,menubar=no,scrollbars=yes,location=no,resizable=no");
      setInterval("newWin.moveTo(0,0)",10); 
      formd.submit(); 
      newWin.focus(); 
      self.opener=null;
      self.close();
      return   false;   
}