value

value - Specifies the value of the slider element.
The slider value is UNDEFINEDby default.

<input id="slider" />

<script type="text/javascript">

     $(function () {
        $("#slider").shieldSlider({
           min: 0,
           max: 100,
           step: 10,
           value: 50
        });
     });

</script>