accordion and checkbox and grid

i make 2 table in database 1st department have ideptid,deptname and 2nd table is subject which have subid,subname,deptid,flag(boolean)
i make page which have accordion , acc(accordion )  have header deptname and deptid, and checkbox
 acc content have a grid which have all subject have deptid where that in header
i want when i update row from grid and make check true ;checkbox in header is check
in another word when no check in grid must no check for cheched in header
thanx
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