如何用文本框值替换asp列表框选择？

<input type="text" id="myTextBox">

<script>
  function replaceSelection() {
    var textBoxValue = document.getElementById("myTextBox").value;
    var listBox = document.getElementById("myListBox");
    listBox.value = textBoxValue;
  }
</script>

<select id="myListBox">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

<input type="button" value="Replace Selection" onclick="replaceSelection()">