incosistency of behaviour of delete buttons

hi!

I found a incosistency of behaviour of delete buttons on message page.
The first delete button after pressing redirect me on page with text "Are you sure that you want to delete this message?"
But delete button below the message will show javascript alert with the same text.
I think that behavour of these buttons could be same. (IMHO javascript alert is better and faster solution)

thanks
Igor
http://www.somvprahe.sk