How to add a checkbox to every item in a list box in Javascript?

My basic code is

<select id="FeatureCodes" MULTIPLE style="width:200px;height:200px">
            <option value="1">Rowh</option>
            <option value="3">Rowi</option>

I want to add a checkbox beside every option..

<select id="FeatureCodes" MULTIPLE style="width:200px;height:200px">

Rowh

Rowi

But i am unable to do so.. can anyone please help?