Solved!

Ok, sorry, Im stupid!!

the solution is simply to write :

CODE
button -label "        -- Apply modif --" -w 200 -c ( "KETmodifyTag " + $shareJoints[$i] + " " + $getType + " " + $i + ";" ) ;
button -label "   Select member" -w 113 -c ("select -r " + $shareJoints[$i] + ";");
button -label "   Delete member" -w 112 -c ("KERdetagThem " + $shareJoints[$i] + ";");

... to exit the [$i] from the " " !!!

and double sorry, this is a reply to my old post :confused: I didnt wanted to write a new one... I cant delete it...