When browser back button is clicked, the controls in the previous page will not get reload. It shows that from the browser history only.
I can suggest u an idea.
In the current page load get the previous page url and store in the hidden variable.
When the browser back button is clicked, there is a javascript code which controls the browser back button.
In that code just redirect to the page that is stored in the hidden field in the java script.
Hope this may help u.
Thanks.