page.insert_rhtml in partial displayed by page.insert_rhtml

hello,
I need to use page.insert_html inside a partial that rendered and
displayed by using page.insert_html.

This is because a form has a inner form that is called dynamically and
the inner form again has a form.
i.e. an event has many eventdays and an eventdays has many speakers.

The part of code in _eventday.rhtml is as follows.
<div class = "eventday">.
<table>
.
.
.
<tr>
<td>NEAREST PUBLIC
TRANSPORT:<%=eventday_form.text_field("event_day_nearest_public_transport",:index=>nil,:size=>"40")%></td>
</tr>
</table>

<div id = "speakers"><%render
:partial=>'speaker/speaker',:collection=>eventday.speakers%> </div>
<b><%=link_to_function "Add a Speaker" do |page1|
page1.insert_html
:after,:speakers,:partial=>'speaker/speaker',:object=>Speaker.new
end%></b>
<%end%>
</body>
</div>

The above partial is called as follows# code in new.rhtml

<div id = "eventdays"><%=render
:partial=>'eventday/eventday',:collection=>@event.eventdays%> </div>
<b><%=link_to_function "Add an Event Day" do |page|
page.insert_html
:bottom,:eventdays,:partial=>'eventday/eventday',:object=>Eventday.new
end%></b>

I am unable to get the form working but as soon as i remove the
page.insert_html in _eventday.rhtml i do not get error but ofcourse the
innermost form isnt displayed.

Please advise what needs to be done to solve the problem.

Thank you.