I found out this nice little
input and
textarea masking script built on
Mootools:
http://zend.lojcomm.com.br/iMask/
I still need to have a deeper look into it, but I think it could be a great addition to eForm, maybe as an extension (ie:Ditto extensions) or as a seperate plug-in using eForm events. There’s a forum post on the Mootools forums regarding the development of this script:
http://forum.mootools.net/viewtopic.php?id=1988&p=1
Just a thought