php shortcode html output

I have a plugin which uses this shortcode: [daisy]

And the html output of this shortcode is : <a class="clickable">Click Here</a> Plugin is working perfect if I use the shortcode to trigger the plugin. It works with this also:

<?php echo do_shortcode('[daisy]'); ?>

Normally it should work also with the

<a class="clickable">Click Here</a> directly but it's not working, the link appears but if I click on it nothing happens. This shortcode triggers some javascript to load :

<script type="text/javascript">
    $(document).ready(function(){
        // Init Plugin
        $(".clickable").contactpopup({
            'style' : '<?php echo $wp_cpup_theme; ?>',
            'bgcolor' : '<?php echo $wp_cpup_color; ?>',
            'formelement' : '#Form_PopContactUs',
            'effect' : '<?php echo $wp_cpup_effect; ?>',
            'header' : '<?php echo $wp_cpup_popup_title; ?>'
        });
    });
</script>

So, it should work fine also with the html.

Any ideas why if I click the <a> element is working and if I use
<?php echo do_shortcode('[daisy]'); ?> it's triggering the plugin (contact form popup).

Here is the demo with the contact form if you want to take a look.

Any suggestions ?

Handler for shortcode:

/*--------------------------------
               Shortcode
    ----------------------------------*/
    add_shortcode("daisy", "wp_contact_popup_short_code_handler");

    function wp_contact_popup_short_code_handler() {
      $demolph_output = wp_contact_popup_short_code_posts_function();
      return $demolph_output;
    }

    function wp_contact_popup_short_code_posts_function( $content = null ) {
        // Grab Globals
        global $wp_cpup_popup_link;
        global $wp_cpup_popup_email;
        global $wp_cpup_popup_thanks;
        global $wp_cpup_form_html;
        global $wp_cpup_email_message;

        ?>