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<html><body><input type="datetime-local" id="myLocalDate"><br><br><button onclick="disableBtn()">Disable Local Datetime Field</button><button onclick="undisableBtn()">Undisable Local Datetime Field</button><p><strong>Note:</strong> input elements with type="datetime-local" do not show as any datetime field/calendar in Firefox.</p><script>function disableBtn() { document.getElementById("myLocalDate").disabled = true;}function undisableBtn() { document.getElementById("myLocalDate").disabled = false;}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_datetime-local_disabled3 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 18:16:54 GMT --></html>