I have frameset with two frames, organized like this:

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Frame A  (containing UltraWebGrid with a hyperlink as a first column)
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Frame B (in this frame should be displayed the target of clicking on the link column, in frame A) 
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When I click on the first column in Frame A, (WebGrid) that contains the link, the target is open in Frame B (that part works as expected). However, the problem is that link is trying to open [at the same time] this page
http://domain/linkColumnValue [which is nonexisting page] in the frame A.

How can I prevent link (in frame A) to try opening anything in Frame A?

P.S. On client side, i have a handler CellClickHandler that gets the values from the grid and use it as parameters for opening the image in Frame B.