> when i first click on the radio button, i've got the blockui box, with
> content ok.. but if i enter wrong code, close the blockui box, and retry
> another code, the content of the box changed.. to undefined ! i can't
> understand why..
That's a subtle thing about blockUI. Each time you invoke $.blockUI
the current contents of the blocking message are removed from the DOM
via empty(). So if you're going to pass a DOM element to blockUI you
need to cache it so that it doesn't get lost. If you add this as the
first line in your doc-ready hook you should be fine:
var codepromo = $('#codepromo')[0];
You can see this same technique used in the example at:
http://www.malsup.com/jquery/block/
Mike
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