<form id="popUpFormContent">
        <div class="afterFormButtonBlock">
            <div class="afterFormButtonBlockContent" id="afterFormButtonBlockContent">
            </div>
        </div>
    </form>
<script>
addButtonToFormButtonBlock('Submit','Submit');
function addButtontoFormButtonBlock(name, text) {
    //adds a button to the form.
    if (!$('a[name="' + name + '"]').length) { //check if our button exists already
        $('#afterFormButtonBlockContent').insertAfter('<a class="button secondaryBackgroundColor shadow" name="' + name + '">' + text + '</a>');
    }
}
</script>