<form action="day?date={{day.date}}" method="POST">
comment: <input name="comment" value="{{day.comment|e}}" />
<input type="submit" value="OK" />
<form action="day?date={{day.date}}" method="POST">
comment: <input name="comment" value="{{day.comment|e}}" />
<input type="submit" value="OK" />