Loading second, third, etc controller

[eluser]walrus_lt[/eluser]
Hello i am creating website and i want to have private messages, my menu panel in some of collumns. And these "panels" comes from different controllers (private messages, forum, etc...).
And now the question, how i could load controller from view / or other controller. And are this method good? Is there better method?


Please help, and sorry for bad english