Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

The HTML form passes key-value pairs to PayPal in a "variable=value" format; you are required to pass a specific action URL and some input fields.

ISO-8859 encodings may not coexist on the same page because the upper halves of their encoding spaces map numbers to different characters. Another headache comes from receiving HTML form input ...

To create a Web page that collects user information, you design a Web form made of HTML code. The form displays a set of questions and text boxes in the user's Web browser.