Views2 / CiviCRM event check-in js

$(document).ready(function () {
  $('#scan').focus();
});

function handleScan(scandata, e) {
  if (e.keyCode == 13) {
    if (scandata.length) {
      toggleParticipant(scandata, 1);
    }
    return (e.keyCode != 13);
  }
}

function updateStatus(message, mtype) {
  $('#actionstatus').removeClass();
  $('#actionstatus').addClass(mtype);
  $('#actionstatus').text(message);
  $('#scan').val('');
  $('#scan').focus();
}

function toggleParticipant(partID, scanned) {
  // get participant current status
  selector = '[class*="' + partID + '"]';
  partRow = $(selector);
  if (! partRow.length) {
    updateStatus('Error: Ticket ID ' + partID + ' not found.', 'error');
    return;
  }
  classList = partRow.attr('class').split(/\s+/);
  for (var i = 0; i < classList.length; i++) {
    if (classList[i].indexOf("-strike") >= 0) {
      if (scanned) {
        updateStatus('Error: Ticket ID ' + partID + ' already admitted.', 'error');
        return;
      }
      var currentclass = classList[i];
      var targetclass = classList[i].replace("-strike", "");
      var partNewStatus = 1;
    }
    else if (classList[i].indexOf("table-highlighter") >= 0) {
      var currentclass = classList[i];
      var targetclass = currentclass + "-strike";
      var partNewStatus = 2;
    }
  }

  // update participant row
  partRow.removeClass(currentclass);
  partRow.addClass(targetclass);

  // update participant with new status
  $().crmAPI('Participant', 'create', {'id':partID, 'participant_status_id':partNewStatus }, { 'ajaxURL':'/civicrm/ajax/rest', success: function(data) {
    if (data['is_error']) {
      updateStatus(data['error_message'], 'error');
      return;
    }
    // update checked in count
    $('.view-filters form').submit();

    // update status message
    message = "Ticket ID " + partID;
    if (partNewStatus == 2) {
      message += " accepted.";
      mtype = "accept";
    }
    else {
      message += " cleared.";
      mtype = "normal";
    }
    setTimeout("try{ updateStatus(message, mtype); } catch(error) {}", 1500);
  }});
}