How to add comments

For adding the feature in the interface, which could enable the users to leave comments to the task, add the following form in the page:

<form method="post" enctype="multipart/form-data">
Comments:<br>
<textarea name="forms_task_comment" cols=70 rows=10></textarea>
Name:<br>
<@std.saveCookies field="temp_user_name">
<input type="text" name="temp_user_name" 
value="${request.cookies.temp_user_name?default("")}">
</@std.saveCookies>
My email:<br>
<@std.saveCookies field="temp_user_email">
<input type="text" name="temp_user_email" 
value="${request.cookies.temp_user_email?default("")}">
</@std.saveCookies>
<input type="hidden" name="method" value="task_comment">
<input type="submit" name="submit">
</form>