<li class="collapsable" id="bx_1847241719_4017">
  <div class="hitarea collapsable-hitarea">  
  </div>
  <label>
    <input type="checkbox" name="category[]" id="4017" value="4017"> Родитель
  </label>
    <ul id="tree-checkbox" class="treeview" style="display: block;">
    <li id="bx_1847241719_4031"><label><input type="checkbox" name="category[]" id="4031" value="4031"> Раздел 1</label></li>
    <li id="bx_1847241719_4030" class="last"><label><input type="checkbox" name="category[]" id="4030" value="4030"> Раздел 2</label></li>
    </ul>
  </li>

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