1. <iframe id="" name=""width="0" height="0" src=""></iframe>
      parent.window.location.reload();

2.  window .open( [ sURL ] [ , sName ] [ , sFeatures ] [ , bReplace ] )
      window.opener.location.reload();

3. window .showModalDialog( sURL [ , vArguments ] [ , sFeatures ])
       vArguments 用 window表示，代表该window对象
      window.dialogArguments.location.reload();