use native JS API instead of jQuery
use native JS API instead of jQuery

according to suggestion;
has been tested and works as well

Co-Authored-By: Holger Stitz <2cf5a210a3ef9d686661010908424a9b3beca956@datavisyn.io>
phovea/phovea_clue,phovea/phovea_clue,phovea/phovea_clue