form.js

var addField = function(formId) {
    var html = '<div class="row">' +
'    <div class="col-sm-6 col-md-5 col-md-offset-1 col-lg-6 col-lg-offset-2">' +
'        <div class="form-group">' +
'            <label for="Reason">Reason</label>' +
'            <input type="text" class="form-control input-lg" id="Reason" tabindex="7">' +
'        </div>' +
'    </div>' +
'    <div class="col-sm-6 col-md-5 col-lg-2">' +
'        <div class="form-group">' +
'            <label for="Date">Date</label>' +
'            <input type="text" class="form-control input-lg" id="Date" data-mask="99/99/99" tabindex="6" placeholder="M/D/Y">' +
'        </div>' +
'    </div>' +
'</div>';

    $('#' + formId).append($(html));
}

addField('hadeyeSurgeryGroup');