Do Broswers Support Multiple Forms? - XHTML 1.0 Tutorials - Understanding Forms and Input Fields

XHTML 1.0 does allow you to create multiple forms in a single XHTML document. Most browsers will display and handle multiple forms properly. If click a submit button in one form, browsers will submit input data only for that one form. Input data from other forms will be ignored.

Here is a tutorial example of two forms on one Web page:

<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
 <head>
  <title>Multiple Forms</title>
 </head>
 <body>
  <h4>Online Survey</h4>
  <form action="http://localhost/submit" method="get">
  <p style="background-color: #eeeeee; padding: 8px;">
   Your name: <input type="text" name="name"
    value="Joe"/><br/>
   Your age: <input type="text" name="name"
    value="18+"/><br/>
   <input type="submit" name="upper"
    value="Upper submit"/>
  </p>
  </form>
  <form action="http://localhost/submit" method="get">
  <p style="background-color: #ffeeee; padding: 8px;">
   How did you find FYIcenter:<br/>
        <input type="radio" name="channel"
     value="google" checked="checked"/>Google search<br/>
        <input type="radio" name="channel"
     value="yahoo"/>Yahoo search<br/>
        <input type="radio" name="channel"
     value="friend"/>Your friend<br/>
   <input type="submit" name="lower"
    value="Lower submit"/>
  </p>
  </form>
 </body>
</html>

If you save the above document as multiple_forms.html, and view it with Internet Explorer, you will see two forms on the page. Go enter some data and submit one of the forms to see what will happen: