fix missing function focusEl
fix missing function focusEl

see issue #1963

aadrian/w2ui,mpf82/w2ui,vitmalina/w2ui,vitmalina/w2ui,mpf82/w2ui,mpf82/w2ui,aadrian/w2ui,vitmalina/w2ui,mpf82/w2ui,mpf82/w2ui,vitmalina/w2ui,vitmalina/w2ui,aadrian/w2ui,vitmalina/w2ui,aadrian/w2ui,aadrian/w2ui,aadrian/w2ui,vitmalina/w2ui,mpf82/w2ui,aadrian/w2ui,mpf82/w2ui