Delete button added later.

I have created a number of page pairs in my application using the "form on a table with report" method. Initially I asked for insert and update buttons but no delete buttons because I wanted to protect our test data. I now need to add the delete buttons. Sometimes they work and sometimes they do not. I have compared everything I can - please help me. Trudy.
My delete button definition is as follows:
Sequence = 20
Button Name = DELETE
Label = Delete
Region is correct
Button Position = Region Template Position #DELETE#
Button Style = Template Based Button
Button Template = Button
Database Action = SQL DELETE action
Condition Type = Value of Item in Expression 1 Is NOT NULL (or != Zero)
Expression 1 = Pnn_NAME_ID where nn is the same page number
Target = URL
URL Target = javascript:confirmDelete(htmldb_delete_message,'DELETE');
The delete buttons that work do not have an associated branch.

*** MORE SPECIFIC PROBLEM DEFINITION
The Delete button works when I change my definition as follows:
Target = '- No Target -'
URL Target = unavailable
*** Please explain how I can to do the confirm delete popup.
My delete button definition was as follows and it works OK for some other tables:
Sequence = 20
Button Name = DELETE
Label = Delete
Region is correct
Button Position = Region Template Position #DELETE#
Button Style = Template Based Button
Button Template = Button
Database Action = SQL DELETE action
Condition Type = Value of Item in Expression 1 Is NOT NULL (or != Zero)
Expression 1 = Pnn_NAME_ID where nn is the same page number
Target = URL
URL Target = javascript:confirmDelete(htmldb_delete_message,'DELETE');

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Begin
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{size:14}{color:green}Can you post the code from your delete page process here?{color}{size}
Good luck,
Don.
REWARDS: Please remember to mark helpful or correct posts on the forum, not just for my answers but for everyone! :)
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