Originally Posted by AcePro1
In practice, the link in the page A must open the page B and the link's href must open in the second iframe of the page B.
Is there any script that does this?
The most reliable way is to include the iframe's URL in a querystring parameter as part of your link's href, which page B can read. You can write a JS function to do this, but it is far better done by a server-side routine.