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    Chapter 6. Form Handling

    6. Form Handling

    In This Chapter

    Select-and-Go Navigation135
    Changing Menus Dynamically140
    Making Fields Required142
    Checking Fields against Each Other147
    Identifying Problem Fields149
    Putting Form Validation into Action151
    Working with Radio Buttons156
    Setting One Field with Another159
    Validating Zip Codes162
    Validating Email Addresses166


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


      

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