I'm having problems simulating a click via javascript on a mailchimp pop-up subscribe form and i need your help. 

```
    <!-- Title & Description - Holds HTML from CK editor -->
    <div class="content__titleDescription" data-dojo-attach-point="descriptionContainer"><strong>Unlock the content </strong>by subscribing to our page.</div>

    <!-- Form Fields -->
    <form action="//mc.us7.list-manage.com/subscribe/form-post?u=bcd9828fa83ea7a231ffbee26&amp;id=1928481ac4" accept-charset="UTF-8" method="post" enctype="multipart/form-data" data-dojo-attach-point="formNode" novalidate="">
        <div class="content__formFields" data-dojo-attach-point="formFieldsContainer">
            <div class="field-wrapper" id="uniqName_3_0" widgetid="uniqName_3_0">
                <label for="mc-EMAIL">Email Address</label>
                <input type="text" name="EMAIL" value="" id="mc-EMAIL" class="invalid">
                <div class="invalid-error" style="display: block;">This field is required.</div>
            </div>
            <div class="field-wrapper" id="uniqName_3_1" widgetid="uniqName_3_1">
                <label for="mc-FNAME">First Name</label>
                <input type="text" name="FNAME" value="" id="mc-FNAME" class="valid">
                <div class="invalid-error" style="display: none;"></div>
            </div>
            <div style="position:absolute;left:-5000px;">
                <input type="text" name="b_bcd9828fa83ea7a231ffbee26_1928481ac4" tabindex="-1" value="">
            </div>
        </div>
        <div class="content__button">
            <input class="button" type="submit" value="Subscribe" data-dojo-attach-point="submitButton">
        </div>
    </form>

    <!-- Footer - Holds HTML from CK editor -->
    <div class="content__footer" data-dojo-attach-point="footerContainer"></div>
</div>
<div class="modalContent__image" data-dojo-attach-point="formImageContainer"></div>

```

The code that i'm trying to target is:

```
    <input class="button" type="submit" value="Subscribe" data-dojo-attach-point="submitButton">

```

It's the submit button "Subscribe" that you can also see in

<http://www.aspeagro.com/EN_Program_Abricot.html>

Thank you!