anchor.diff:                              <div class="col-md-6">
                                   <input type="text" id="color" class="form-control"  value="${hp.colorList}">
                                   <input type="hidden" id="colorId" name="color">
  -                                <c:if test="${empty hp.id}">
  +                                <c:if test="${!empty hp.id}">
                                       <input type="hidden" id="colorOld" value="${hp.color}">
                                   </c:if>
                               </div>
  
positive.code:                             <div class="col-md-6">
                                  <input type="text" id="brand" class="form-control" value="${hp.brandList}">
                                  <input type="hidden" id="brandId" name="brand">
                                  <c:if test="${empty hp.id}">
                                      <input type="hidden" id="brandOld" value="${hp.brand}">
                                  </c:if>
                              </div>
  
negative.code:                             <div class="col-md-6">
                                  <input type="text" id="date" class="form-control" value="">
                                  <input type="hidden" id="dateId" name="date">
                                  <c:if test="${!empty hp.id}">
                                      <input type="hidden" id="dateOld" value="${hp.date}">
                                  </c:if>
                              </div>
                              <div class="col-md-2">
                                  <button type="button" class="btn btn-default showTreePanel" data-type="date">
  