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JavaScript: Visual QuickStart Guide, Eighth Edition
book

JavaScript: Visual QuickStart Guide, Eighth Edition

by Tom Negrino, Dori Smith
July 2011
Beginner
544 pages
12h 34m
English
Peachpit Press
Content preview from JavaScript: Visual QuickStart Guide, Eighth Edition

6. Form Handling

In This Chapter

Select-and-Go Navigation 135

Changing Menus Dynamically 140

Making Fields Required 142

Checking Fields against Each Other 147

Identifying Problem Fields 149

Putting Form Validation into Action 151

Working with Radio Buttons 156

Setting One Field with Another 159

Validating Zip Codes 162

Validating Email Addresses 166

Any time you need to gather information from the users of your Web sites, you’ll need to use a form.

Forms can contain most of the usual graphical interface elements, including entry fields, radio buttons, check boxes, pop-up menus, and entry lists. In addition, HTML forms can contain password fields, shielding the user’s input from prying eyes.

Once the form is filled out, a click on the form’s Submit ...

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Publisher Resources

ISBN: 9780132735483Purchase book