Martin:
The function looks for specific markup in the page, and the markup in your page layout undoubtedly doesn't match that. If you look into the SPServices code as the DropdownCtl function, you can see what it is looking for and try to replicate it.
However, I really built the function for forms. Since you have full control over what's going on in your page layout, it may be simpler to bang together your own version of the functionality with the underlying Web Services operations.
M.
The function looks for specific markup in the page, and the markup in your page layout undoubtedly doesn't match that. If you look into the SPServices code as the DropdownCtl function, you can see what it is looking for and try to replicate it.
However, I really built the function for forms. Since you have full control over what's going on in your page layout, it may be simpler to bang together your own version of the functionality with the underlying Web Services operations.
M.