<html>
<body>
<form>
<select id="mySelect" size="8">
<option>Apple</option>
<option>Pear</option>
<option>Banana</option>
<option>Orange</option>
</select>
</form>
<p>Click the button to add a "Kiwi" option at the index position "1" in the drop-down list.</p>
<button type="button" onclick="myFunction()">Insert option</button>
<script>
function myFunction() {
var x = document.getElementById("mySelect");
var c = document.createElement("option");
c.text = "Kiwi";
x.options.add(c, 1);
}
</script>
</body>
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</html>