The onreset event occurs when a user resets or clears a form, rather than submitting. The event causes a script to execute that performs a desired task. For example, you could call a function or display an alert box offering additional information to the user.
These six events are useful when dealing with forms and form elements:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>DevGuru XHTML onreset Example</title>
</head>
<body>
<form onreset="alert('Default color restored')">
Please enter your favorite color:
<br />
<input type="text" name="fullname" size="20" value="lavender">
<br />
<input type="reset" value="Reset">
</form>
</body>
</html>In this example, clicking the reset button causes an alert box to be displayed with a message.