say you name the 第三个框架 as "ThirdWin":
...
<frame name="ThirdWin" ..>then in the other two frames, either on your link, add a target attribute:
<a href="..." target="ThirdWin">or add this line
<base target="ThirdWin">
...
<frame name="ThirdWin" ..>then in the other two frames, either on your link, add a target attribute:
<a href="..." target="ThirdWin">or add this line
<base target="ThirdWin">
可以在msdn的web开发->HTML和动态HTML->Reference->Objects->a
中有详细的说明
ms-help://MS.MSDNQTR.2003FEB.2052/dhtml/workshop/author/dhtml/reference/objects/a.htm