cript,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
</head>
<body>
<input type="radio" class="radio" name="Button" value="u_0" checked="checked" data-value="200"> //Radio buttons
<button id="rangevalue" class="betdisplay" style="border:0; color:#f6931f; font-weight:bold;" >click</button>
<script>
$("#rangevalue").click(function() { var value = $(":radio[name=Button]").filter(":checked").data('value');
value && alert(value) })
</script>
</body>
</html>