How to move checkmark through the cheboxlist?

So i have checkboxlist

<input type="checkbox" name="colorc" value="black" />Black<br/><br>
<input type="checkbox" name="colorc" value="brown" />Brown<br/><br>
<input type="checkbox" name="colorc" value="white" />White<br/><br>
<input type="button" id="btnClick" value="Color Change"></button>

and when i press button, checkmark moves to next checkbox, the same i want if we have two checkmarks, but without using JQuery, clear JS. Thanks