如何选中div上的复选框点击Chrome扩展程序

I currently have this layout:

我目前有这个布局:

<div class="row">
    <div class="col-lg-12">

        <div class="input-group">
            <div class="input-group-addon">
                <input class="checkboxOption" type="checkbox">
            </div>
            <div class="form-control">Clinical Pharmacology (sub req'd)</div>
        </div><!--input-group-->

        <div class="input-group">
            <div class="input-group-addon">
                <input class="checkboxOption" type="checkbox">
            </div>
            <div class="form-control">Clinicaltrials.gov</div>
        </div><!--input-group-->
    </div>
</div>
<di