deleting entries from the ztables which r there as radiobutons on sel-scrn

hi guys,

i have a selection screen with 30 radiobuttons which contains all ztables.by clicking on particular radiobutton(ztable) it will take me to the next screen which contains the field names related to the clicked table.also in this screen i have pushbuttons like update,audit trial,check and delete on application toolbar.after entering the values for fields by clicking the particular pushbutton it shoud do the required process.of cource update,check and audit trial are working.but by clicking delete pushbutton it is not deleting the records from the ztable.this is the issue.

if any suggestions on this plz give immediately.very urgent.

if the problem is solve,reward points.