Sort the OPTIONs in a SELECT menu

function compareOptionText(a,b) {
  /*
   * return >0 if a>b
   *         0 if a=b
   *        <0 if a<b
   */
  // textual comparison
  return a.text!=b.text ? a.text<b.text ? -1 : 1 : 0;
  // numerical comparison
//  return a.text - b.text;
 
}
 
function sortOptions(list) {
  var items = list.options.length;
  // create array and make copies of options in list
  var tmpArray = new Array(items);
  for ( i=0; i<items; i++ )
    tmpArray[i] = new
Option(list.options[i].text,list.options[i].value);
  // sort options using given function
  tmpArray.sort(compareOptionText);
  // make copies of sorted options back to list
  for ( i=0; i<items; i++ )
    list.options[i] = new Option(tmpArray[i].text,tmpArray[i].value);
 
}