I'm attempting to use the following MultiDatesPicker jQuery calendar and when I try to apply it to a "Single Line" field, the field will change behavior to act as a standard "Date" field, using the same Forms-style drop-down and also with the "calendar" icon next to the input box.  I'm assuming this is because Forms also uses the "datepicker" module (which is also a requirement of the above-linked plugin.)

$(document).ready(function () {
    $.getScript('/Forms/js/jquery-ui.multidatespicker.js', function() {
      $('#q31 input').multiDatesPicker();
    });
});

Is there something I need to do to override the standard datepicker module? Any help appreciated.

Edit:

It looks like when I apply the above, the "hasDatePicker" class is added to the Field, even though this is a Single Line field. I'm sure this is causing most/some of the issue

<input id="Field31" class="singleline cf-medium user-success hasDatepicker" type="text" vo="e" list="datalist31" maxlength="4000" name="Field31" min="1900-01-01" max="2200-12-31">