Javascript Form Validation

To get Validanguage, or learn more, click one of the links below:

    Validanguage - Latest version is 0.9.9

• The documentation, and the functionality itself, was designed for use by both javascript-savvy Web developers and those with no experience writing javascript.
• 100% unobtrusive javascript, name-spaced under the global validanguage object. No inline event handlers required (not even to block form submissions)
• No external libraries required (optional Prototype, Dojo or jQuery integration)
• Use inheritance to manage your validation settings. Define a setting globally, per-form, or per-element.
• Supports a choice of two APIs:
• HTML-like API placed inside comment tags. The choice for ease of use and simplicity.
• Javascript Object-based API. For advanced configuration.
• Cutting-edge ajax support with integrated caching mechanism and timeout behavior
• Easily configure custom validation functions to be triggered onblur, onsubmit, onchange, etc.
• Add onsuccess and onerror callback functions to integrate Validanguage into your existing site design.
• All validation functions and onsuccess/onerror callbacks are scoped so that the this keyword refers to the validated element.
  A normalized "text" argument is supplied to validation functions for textareas and textboxes.
  The inherited error message is automatically supplied to the onerror callback(s) as the first argument.
• Easy-to-use keypress suppression.
• Includes numerous useful "transformation" functions to aid in producing slick forms that dynamically respond to users' input
• See the Validanguage Roadmap for a list of features being planned for future releases.

Here's an example of Validanguage's keypress suppression, defined using the comment tag API:

Here's an example of the Object-based API for the same functionality (with a couple additional rules thrown in):

validanguage.el.example = {
  characters: {
     mode: 'allow',
     expression: 'numeric$.',
     onsubmit: true,
     errorMsg: 'You may only enter numbers, periods,
                or the dollar sign.'
  },
  required: true,
  errorMsg: 'Please enter a valid monetary amount',
  onsuccess: 'someObject.successHandler',
  onerror: [errorHandler1, errorHandler2]
}   

To get Validanguage, or learn more, click one of the links below: