Add-ons that start with the letter O, are compatible with LG Add-on Updater, are compatible with Stand-Alone Entry Form, are Free and are sorted by Entry Date.

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ExpressionEngine 1.x, ExpressionEngine 2

The onSubmit extension lets you add an onsubmit Javascript handler to any EE form. This lets you validate forms through Javascript prior to submission thus improving site usability and reducing server load.

Added October 3, 2008.

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