where should the dojo satement should be written in a zend form .

Question

hii i am new to zend . i have written a form using zend . like under forms i have created the forms and a simple one like

 $specific_consultant = new Zend_Form_Element_Radio('Specific_consultant');
        $specific_consultant->setLabel('Specific Consultant')
                ->addMultiOptions(array(
                  'Yes' => 'Yes',
                  'No' => 'No'))
      ->setSeparator('');

i have to write a dojo commands so tht when i click on yes over here , a set of textboxes must be show. where should i write this dojo script? how should i enable it . by default zend package had dojo.

in corrsponding views file i just have

<?php

echo $this->form ;
?>