[jQuery] (Bassistance validate) Require at least one selection from one dropdown out of 1-n dropdowns

[jQuery] (Bassistance validate) Require at least one selection from one dropdown out of 1-n dropdowns

i have a form page, obviously, and on that page I have form 1-n multiple select dropdowns
dropdown name/id is always sel_TXT_NAME_SELECTED_#unique_name# where unique name is a unique identifier from the DB

i need to make sure there is at least one dropdown with one or more items in it, by default anything listed in the dropdown is going to be selected so i don't need to validate a selection just that the dropdown has options (they are populated through a series of cascading select boxes, by default anything in the last box is considered a final selection) , so the validation in this case is something like $("#sel_TXT_NAME_SELECTED_my_name").options.length

i just need to get it for 1-n items in a single validation routine.

any suggestions

TIA