Delete script not working

Hi,

The delete script does not seem to work. Whenever I write code in the "success" of delete, I am unable to execute the deletion of a record. The message "Record deleted successfully" never appears whenever there is any script in delete.
Also, I tried to just keep a comment instead of code in the delete script, this also brings out the same result.

Please let me know if its generic problem or pertains to my application only.

Thanks
Sangharsh