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<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script>
<script src="https://net-raft.com/plugins/jquery/border_radius/BorderRadius.js" type="text/javascript"></script>
</head>
<body>
<div style="border: 2px solid black;height: 50px;"></div>
<input type="range" name="radius" id="radius" value="0" min="0" max="20">
<script type="text/javascript">
$(document).on('input change', '#radius', function () {
var radius = $("#radius").val();
$('div').Border_Radius(radius);
});
</script>
</body>
</html>
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