[fw-general] Zend_Dojo_Form_Element_Button and isChecked()

[Apsy]

I'm attempting to process a *form* conditionally based upon which 
*button* was clicked. This is working using *Zend_Form_Element_Button*, 
but not the *Dojo* variant. Calls to addElement look like this:

        $this->addElement(
            '*Button*',
            'save',
            array(
                'label' => 'Save',
                'order' => 100,
            )
        );
        $this->addElement(
            '*Button*',
            'saveandexit',
            array(
                'label' => 'Save & Exit',
                'order' => 101,
            )
        );

And the controller code..

if ($*form*->save->*isChecked*()) {
    $params = array('id' => $post->id);
    $this->redirector->gotoSimple('edit', 'post', 'dashboard', $params);
}

Am I missing something?