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<!DOCTYPE html>
<html>
<body>
​
<form>
  <fieldset id="myFieldset">
  <legend>Personalia:</legend>
  Name: <input type="text"><br>
  Email: <input type="text"><br>
  Date of birth: <input type="text">
  </fieldset>
</form><br>
​
<button onclick="disableField()">Disable fieldset</button>
<button onclick="undisableField()">Undisable fieldset</button>
​
<script>
function disableField() {
  document.getElementById("myFieldset").disabled = true;
}
​
function undisableField() {
  document.getElementById("myFieldset").disabled = false;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_fieldset_disabled3 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:12 GMT -->
</html>
​
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