<html>
<head>
<script src =
"https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("#button1").click(function() {
$("#sName").attr('disabled',
!$("#sName").attr('disabled'));
});
});
</script>
</head>
<body>
<input type="checkbox"
id="sName" name= "MILK" style="width: 25px"
value="MILK" disabled="disabled"/>Ice-Cream
<br><br>
<input type="button"
id="button1" value="Disable/ Enable" />
</body>
</html>
