When Bookmark and Print Sheet options are used, do triggers work in IE and AJAX view?

[#1]

Hi,

I am using a trigger to make a field single select. This trigger works fine on my local system but in IE and AJAX view when user uses Bookmark or clicks Print Sheet button (A button provided with action as Print Sheet) all the entries in that field get selected.

What could be the reason and solution?

PS: I cannot use always one selected option in that field due to some constraints.

Trigger used is : select in field

Thanks,

Amit