jVal – jQuery Form Field Validation Plugin

jVal is a jQuery form field validation plugin that provides an appealing animated message flyout that doesn’t impede form layout/design while being user-friendly.

FEATURES

• Current development version is only 8KB and 5.8KB minified
• Check validity of field values within a certain container or block element based off simple INPUT tag attributes
• Easy configuration of validity checks per field as per attributes in the INPUT tag
• Check the validity of all fields within a certain container with a single function call
• Check the validity of a single field when the user clicks away firing the onBlur event
• Prevent the user to input specific characters into the field and notify them it’s not allowed

Known Issues

• There are known formatting issues when the container block with the form field is of a certain type, display:inline-block and TD elements work best with the current version
• jVal warning/error text is larger than default Safari input[type=text] fields – isn’t symmetrical in height and position with the field.
• resizing the window fouls the placement of the jVal warning/errors as well as the fields. This could be solved by clearing the warnings/errors with the window.onResize event.

Demo : http://www.overset.com/2008/07/31/jval–jquery-form-field-validation-plugin/
License : MIT License