end: new Date(2010, 8, 2),  // end is optional
    content: 'Trajectory A'
    // Optional: fields 'id', 'type', 'group', 'className', 'style'
  }
  // more items...
]);
</pre>

  <p>
    The item properties are defined as:
  </p>

  <table class="properties" id="itemOptionTable">
    <tr>
      <th>Name</th>
      <th>Type</th>
      <th>Required</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>className</td>
      <td>String</td>
      <td>no</td>
      <td>This field is optional. A className 