validation

Get flash to fully experience Pearltrees

Valid XHTML YouTube embed code generator - Online tool

http://www.tools4noobs.com/online_tools/youtube_xhtml/

This free tool will create a valid XHTML embed code for any YouTube video. The code YouTube shows on the embed field is not valid XHTML! However, you can simply use this simple tool to make it Valid XHTML 1.0 Transitional.

Validator.nu

http://www.smashingmagazine.com/2009/07/07/web-form-validation-best-practices-and-tutorials/

Ideally, users will fill the web form with necessary information and finish their job successfully.

Web Form Validation: Best Practices and Tutorials | How-To | Smashing Magazine

Using Ajax to Validate Forms | jQuery for Designers - Tutorials and screencasts

Server-based validation, with can be delivered with a page refresh, or live (as this tutorial will explain), i.e. for checking whether a username is taken.

http://jqueryfordesigners.com/using-ajax-to-validate-forms/

http://www.queness.com/post/204/25-jquery-plugins-that-enhance-and-beautify-html-form-elements

25+ jQuery Plugins that enhance and beautify HTML form elements | Queness

Frustrated with the form elements inconsistency among different browsers?