-<tr><th>day</th><td>{{ todo.day.date }}</td></tr>
-<tr><th>day effort</th><td class="input"><input type="number" name="day_effort" step=0.1 size=8 value="{{ todo.day_effort }}" /></td></tr>
+<tr>
+<th>efforts</th>
+<td>
+<table>
+<tr><th>date</th><th>effort</th><th>delete</th>
+{% for date, effort in todo.efforts.items() %}
+<tr>
+<td><input name="effort_date" size=10 value="{{date}}"></td>
+<td><input type="number" name="effort" step=0.1 size=8 value="{{effort}}" placeholder="{{todo.default_effort}}" /></td>
+<td><input type="checkbox" name="delete_effort" value="{{date}}" />
+</tr>
+{% endfor %}
+<tr>
+<td><input name="effort_date" size=10 value=""></td>
+<td><input type="number" name="effort" step=0.1 size=8 value="" placeholder="{{todo.default_effort}}" /></td>
+</tr>
+</table>
+</td>
+</tr>