1<div id="fastSelectWrapper">
2    <select class="multipleSelect" multiple name="language">
3    <option value="All">Select ALL</option>
4    <option value="Bangladesh">Bangladesh</option>
5    <option selected value="Barbados">Barbados</option>
6    <option selected value="Belarus">Belarus</option>
7    <option value="Belgium">Belgium</option>
8    </select>
9    </div>
10 <script>
11
12  // to remove all 
13 $("#fastSelectWrapper .fstChoiceRemove").click();
14 </script>
15