if declare -F "bpgallery_${BPGALLERY_THEME}_head" > /dev/null ; then
BPGALLERY_HEAD_FUNCTION="bpgallery_${BPGALLERY_THEME}_head"
else
if declare -F "bpgallery_${BPGALLERY_THEME}_head" > /dev/null ; then
BPGALLERY_HEAD_FUNCTION="bpgallery_${BPGALLERY_THEME}_head"
else