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You might sometimes need to collect information from the visitors to your Website. The types of information that might need to be gathered can include feedback about the site, user registration, responses to polls, and buying products (e-commerce). From gathering different types of information to creating an opportunity for visitors to interact with your site, forms provide the necessary user interface that enables you to obtain data. Forms allow you to ask visitors for specific information or to give them an opportunity to send feedback, questions, or requests to you. Visitor registrations and product orders often require the functionality of forms. Forms are often used in conjunction with databases and can enable visitors to perform searches and post information to be included in a database. A form contains fields in which users enter information. These fields can be text fields, radio buttons, checkboxes, menus, or lists, to name a few.