caching fragement

HI all,

in my application i have index action. i called cache for this index by
using

cache_page :index
and in index.erb page i called another partila page using and cached
the fragment using

<%cache "1" do%>
<%@someobjects=Tablename.find(:all)%>
<%=render(:partial=>'index2',:collection=>@someobjects%>
<%end%>

i want to expire the page and fragment caching how to do this.
please its very urgent

Regards,
Raju

Raju,

Check out
http://api.rubyonrails.org/classes/ActionController/Caching.html
http://api.rubyonrails.org/classes/ActionController/Caching/Pages.html
http://api.rubyonrails.org/classes/ActionController/Caching/Fragments.html

/Lasse