ZF login form

<?php
 
/**
* Form for login
**/
class Form_Login extends Zend_Form {
 
 
	public function init() {
 
		$this->setName('login');
 
		$username = new Zend_Form_Element_Text('username');
		$username->setLabel('Username: ')
			->setRequired(true)
			->addFilter('StripTags')
			->addFilter('StringTrim');
 
		$password = new Zend_Form_Element_Password('password');
		$password->setLabel('Password: ')
			->setRequired(true)
			->addFilter('StripTags')
			->addFilter('StringTrim');
 
		$submit = new Zend_Form_Element_Submit('submit');
		$submit->setAttrib('id', 'submitbutton');
 
		$this->addElements(array($username, $password, $submit));
	}
}