thansk for that.
but im looking at the info.
i see how to set 1 field as a trigger for another.
but i dont see how to set the trigger IF AND ONLY IF the item selected is a particular selection.
ie
SELECT LIST
option1
option2
option3
TEXT ENTRY FIELD
if option3 is selected from the SELECT LIST then require the text entry field.
can you lead me a little further here?
then require