function updateFauxMenu(chosen_value) {
  $A($('ContactRegarding').options).each(function(option){
    if (chosen_value == option.value)
      $('ContactRegardingFauxMenu').innerHTML = option.text;
  });
}

Event.observe(window, 'load', setReasonFromUrl);

function setReasonFromUrl() {
  if(!$('ContactRegarding')) return;
  var compactedContactReason = window.location.toString().split('?')[1];

  $A($('ContactRegarding').options).each(function(opt, index){
    if (opt.text.gsub(' ', '') == compactedContactReason) {
      $('ContactRegarding').value = opt.value;
      updateFauxMenu(opt.value);
    }
  })
}