When it comes to form validation, it’s hard to have a versatile solution that works with every form. Figuring out how to display errors is not a simple task. This is something I tried to remedy with this script. When an error needs to be displayed, the script creates a div and positions it in the top right corner of the input. This way you don’t have to worry about your HTML form structure. The rounded corner and shadow are done with CSS3 and degrade well in non compliant browsers. There is no images needed.

When you submit a form, it will look for inputs with predefined class selectors, and validate them accordingly to their type. It also does on the fly validation when you click outside of the input. When validating on submit , every errors will appear in absolute position above the input in question, and slide the scroll bar to this first error (diminish your browser window if you don’t see the effect).

The on the fly validation will validate the modified input when you click outside of the text zone.

View demo

Localisation language is also available, I already did a (poor) french localisation. Do not include more than one localization at a time in a page. Custom regEx rules with error messages can also be added very easily for you crazy guys that understand how regEx rules actually work.

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http://www.position-absolute.com/articles/jquery-form-validator-because-form-validation-is-a-mess/

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