I have made a custom lookup with 3 linked tables & 3 grids http://img254.imageshack.us/img254/1694/greenshot20090415165956.png
When I click on an element in the grid1 (top left) it updates the grid2 (top right) and when i click on an element in that last grid2 (top right) it updates the grid3 (bottom) Then I can choose the value of my field by selecting one of the record from that last grid3 (bottom) Things is... When I click on an active element from grid1 or grid2 (top grids) the lookup closes itself and select the element which was selected in the grid3 (bottom) normally it's the first one. How can I deactivate the closing of the lookup when clicking elsewhere than the grid3 (bottom)

