checkbox related promble

[lolo]

hi all,

my problem is to delete the row of table which are fetched from the
table of the databse using SELECT QUERY

i am able to delete the data without checkbox
but when i am trying to delete the using checkbox i can't
i want to delete the row for which the checbox are checked
My fields of table are
P_S_No varchar
R_P_S_No varchar
d int
m int
y int
Cur_shift int
Ch_shift int

and now i had one more field which is

id int primarykey

plz help