anchor.diff:                  name="amount"
                   size="40"
                   maxlength="40"
  -                title="<fmt:message key="editcategory.amount.tooltip"/>"
  -                placeholder="<fmt:message key="editcategory.amount.default"/>"
  +                title="<fmt:message key="editexpense.amount.tooltip"/>"
  +                placeholder="<fmt:message key="editexpense.amount.default"/>"
                   pattern="[-+]?[0-9]*[,.]?[0-9]{0,2}"
                   required="required"
                   autocomplete="off"
                   value="<c:out value="${requestScope.expense.amount}"/>">
  -            <label class="w3-label" for="amount"><fmt:message key="editcategory.amount.label"/></label>
  +            <label class="w3-label" for="amount"><fmt:message key="editexpense.amount.label"/></label>
           </div><div class="w3-third">
  -            <input class="w3-check" type="checkbox" name="monthly" title="<fmt:message key="editcategory.monthly.tooltip"/>" value="true" ${requestScope.expense.monthly ? 'checked' : ''}>
  -            <label class="w3-label" for="fixedcost"><fmt:message key="editcategory.monthly.label"/></label>
  +            <input class="w3-check" type="checkbox" name="monthly" title="<fmt:message key="editexpense.monthly.tooltip"/>" value="true" ${requestScope.expense.monthly ? 'checked' : ''}>
  +            <label class="w3-label" for="fixedcost"><fmt:message key="editexpense.monthly.label"/></label>
           </div><div class="w3-third">
  -            <input class="w3-check" type="checkbox" name="income" title="<fmt:message key="editcategory.income.tooltip"/> "value="true" ${requestScope.expense.income ? 'checked' : ''}>
  -            <label class="w3-label" for="income"><fmt:message key="editcategory.income.label"/></label>
  +            <input class="w3-check" type="checkbox" name="income" title="<fmt:message key="editexpense.income.tooltip"/> "value="true" ${requestScope.expense.income ? 'checked' : ''}>
  +            <label class="w3-label" for="income"><fmt:message key="editexpense.income.label"/></label>
           </div>
       </div>
   </div><div class="w3-panel">
  
positive.code:                 maxlength="2"
                  min="1"
                  max="31"
                  title="<fmt:message key="editcategory.day.tooltip"/>"
                  placeholder="<fmt:message key="editcategory.day.default"/>"
                  value="<c:out value="${requestScope.expense.getDay().get(5)}"/>"
                  required="required" >
              <label class="w3-label"><fmt:message key="editcategory.day.label"/></label>
          </div><div class="w3-third">
              <input class="w3-input w3-border w3-round-large"
                  type="number"
  
negative.code:                 maxlength="2"
                  min="1"
                  max="12"
                  title="<fmt:message key="editexpense.month.tooltip"/>"
                  placeholder="<fmt:message key="editexpense.month.default"/>"
                  value="<c:out value="${requestScope.expense.getDay().get(2)+1}"/>"
                  required="required">
              <label class="w3-label"><fmt:message key="editexpense.month.label"/></label>
          </div><div class="w3-third">
              <input class="w3-input w3-border w3-round-large"
                  type="number"
  