Preselecting an Item in a Drop-Down List

The following JavaScript code can be used to preselect an item in a drop-down list.
<script type="text/javascript">
function PreselectMyItem(itemToSelect)
  // Get a reference to the drop-down
  var myDropdownList = document.frmPreselect.lstNames;

  // Loop through all the items
  for (iLoop = 0; iLoop< myDropdownList.options.length; iLoop++)
    if (myDropdownList.options[iLoop].value == itemToSelect)
      // Item is found. Set its selected property, and exit the loop
      myDropdownList.options[iLoop].selected = true;

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