#83 Lacking functionality in Safari

When trying to move or delete a message using the dropdown-box in messages.php under Safari, nothing happens. I guess this is due to some JS-inconsistencies, but it needs to be fixed before 0.2 anyway as this blocks a lot of messaging functionality under Safari.

As a small side-note, the "pm sendt successfully"-message should use the success-box in the inbox rather than it's own message thingie.

[Nobody/Anonymous]

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Success-box done.