jQuery Grid Plugin - jqGrid

Hello, I´m trying to load php files(with grids obviously) in a div container via jquery's .load() function. For example, I have a file called mypage.php that have a reference to a grid, and I want to load that page with the next function $('container').load('mypage.php'), but nothing happens.

Have anyone tried to load pages with grids in divs?? Any idea?

Thanks. And excuse my English please.