Learn:

• How to report errors in a professional way.

• How page-wide, global error messages help the user.

• How JavaScript functions make error reporting easier to program.

This lessons shows a complete form validation example.

• It shows good error messages.

• Some error checking is on the server side. Some is on the client side.

• Bother server-side and client-side error messages are reported in the same way. That’s done by writing PHP code that calls JavaScript code.

Learn:

• How to get form data into JavaScript variables.

• How to check that data for errors.

• How to report errors to the user.

This lesson looks at adding games to your site. You’ll see how to create your own Mad Lib game. You can customize the game to match the content and the look and feel of your site.

Search is one of the most important widgets. This lesson shows you how to add a simple search function to your site. You will learn:

• Why search makes your site more valuable.

• How to create a search form on your site.

• How to run Google searches from your site.

Learn how to make a table sortable. Users will be able to click on table columns to sort tables the way they want. You’ll use a jQuery plugin to do the work.

Learn how to create tables, style them, and let the user interact with them using jQuery.

This is a jquery plugin I wrote to invisably validate a text input field on keypress with a regular expression.

Learn how to make site maps, as nested lists of links.

Learn how to:

• Create horizontal nav bars with text.

• Position horizontal nav bars.

• Create horizontal nav bars with images and hover effects.