The HTML_QuickForm package provides methods for dynamically create, validate
and render HTML forms.

Features:
* More than 20 ready-to-use form elements.
* XHTML compliant generated code.
* Numerous mixable and extendable validation rules.
* Automatic server-side validation and filtering.
* On request javascript code generation for client-side validation.
* File uploads support.
* Total customization of form rendering.
* Support for external template engines (ITX, Sigma, Flexy, Smarty).
* Pluggable elements, rules and renderers extensions.