It is important to note that while there are great benefits to starting from scratch, some of the more common problems you’ll encounter, such as remaining character count, autoresizing textareas, and form validation (just to name a few), have already been addressed by others. Please see Chapter 11 or visit the jQuery forums and blogs online for more information on how community-critiqued and community-tested plugins can help you. Sometimes it helps to look at someone else’s code to find out what you could do better with yours.
In the following recipes I am only showing XHTML code snippets relevant to the problem. Please make sure that your code is a complete XHTML document and that it passes validation. ...