What was the solution to this? One of my sets is doing this also. The delete button shows up, it just doesn't have any action when pressed.
<input type="button" class="formButton ResultsPageButton coolsmallerfont DeleteButton" value="" onclick="document.getElementById('WADADeleteRecordID').value=<?php echo($row_WADAtestimonials2013['testimonials_ID']); ?>;document.getElementById('deleteBox').style.display = 'block';document.getElementById('deleteMessage').style.display = 'table';" />
Other sets in same admin are ok. I've redone this set 3 times.