Drupal 7 Captcha in all webforms or per content type webforms I am on D7.

I have a content type that is webform enabled. 

Requirement
I need to implement captcha for all the webforms for nodes of this content type. 

Problem
In D7, you are supposed to give the form_id in the settings page to get captcha in the form, however I will have loads of forms with all different form_ids.

I am using the Captcha module. 

Is there any way to implement my requirement?
You could add the following code to your template.php 

if (strstr($form_id, 'webform_client_form')) {
        $form['my_captcha_element'] = array(
            '#type' =&gt; 'captcha',
            '#captcha_type' =&gt; 'image_captcha/Image',
        );
    }


this should be placed inside the yourthemename_form_alter