Object JavaScript MVC Checkbox Font Awesome

ojs-checkboxForm.cshtml

@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()
    <fieldset class="form-horizontal">
    <legend>Contact Information</legend>
    <div class="form-group">
    @{
        var OkToEmailChecked = Model.TheContact.OKToEmail == true ? "checked" : "";
        var ContactOnceChecked = Model.TheContact.OKToEmail != true ? "checked" : "";
    }
        @Html.HiddenFor(model => model.TheContact.OKToEmail)
        @Html.LabelFor(model => model.TheContact.OKToEmail,
            new { @class = "col-sm-2 control-label" })
        <div id="OkToEmailButtonGroup" class="row">
            <div class="col-sm-2">
                <label for="okToEmail">
                    <input type="radio" name="OkToEmail" id="okToEmail" value="0" 
                    @OkToEmailChecked />
                    <span>Send Newsletters</span>
                </label>
            </div>
            <div class="col-sm-2">
                <label for="contactOnce">
                    <input type="radio" name="OkToEmail" id="contactOnce" value="1" 
                    @ContactOnceChecked />
                    <span>Contact Once</span>
                </label>
            </div>
        </div>
    </div>
    </fieldset>
    <fieldset class="form-horizontal">
    <legend>Classtimes</legend>
    <div class="btn-group" data-toggle="buttons">
        <label class="checkbox btn btn-default">
            <input type="checkbox" name="Weekdays" value="Weekdays"
            @(Model.Weekdays ? "checked" : "") /><span>Weekdays</span>
        </label>
        <label class="checkbox btn btn-default">
            <input type="checkbox" name="Evenings" value="Evenings"
            @(Model.Evenings ? "checked" : "") /><span>Evenings</span>
        </label>
        <label class="checkbox btn btn-default">
            <input type="checkbox" name="Weekends" value="Weekends"
            @(Model.Weekends ? "checked" : "") /><span>Weekends</span>
        </label>
        <label class="checkbox btn btn-default">
            <input type="checkbox" name="Online" value="Online"
            @(Model.Online ? "checked" : "") /><span>Online</span>
        </label>
        </div>
    </fieldset>    <fieldset class="form-horizontal" style="padding-top: 1em">
         <div class="form-actions no-color" style="text-align:center">
            <input type="submit" value="Send" class="button large dark" />
        </div>
    </fieldset>
}