fvalidator - free javascript validator

fValidator is an open source unobtrusive javascript tool for easy handling form validation so that you don't have to painfully code if your form has too many fields.

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Modalbox - the Web 2.0 modal dialogues

ModalBox is a JavaScript technique for creating modern (Web 2.0-style) modal dialogues or even wizards (sequences of dialogues) without using conventional popups and page reloads. And yes, it may also be useful for showing bigger versions of images. :)

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