As poj said, this: 

<form method="post" onsubmit="return confirm('Do you really want to de
+lete?');">

[download]

isn't Perl. You'd want to put this into your HTML, replacing this line: 

<form method=POST>

[download]

Also see window.confirm on the MDN.

In reply to Re^3: Adding a pop up confirmation box by AppleFritter
in thread Adding a pop up confirmation box by terrykhatri

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