I found that problem is not in session probem is that when i am login in one php page where i already used session but when i am doing login with login name and password . I have seen that when i am printing value login name and password after login page then it is showing value in IE but not in Mozilla Firefox.
Due to this i am getting different result in IE and Mozilla both having the same URL of site. means same page url
SO how i can sort out this problem . Please help me