<html>
<body>
<p>Click the buttons to show and/or close the dialog window.</p>
<button onclick="showDialog()">Show dialog</button>
<button onclick="closeDialog()">Close dialog</button>
<p><b>Note:</b> The dialog element is only supported in Chrome 37+, Safari 6+ and Opera 24+.</p>
<dialog id="myDialog">This is a dialog window</dialog>
<script>
var x = document.getElementById("myDialog");
function showDialog() {
x.show();
}
function closeDialog() {
x.close();
}
</script>
</body>
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</html>