Please help me-it's urgent,maintaining session and security using cookies.

hi folks,
i presently developing a web site for an engineering colleege ,i am facing prob in maintaining the session using cookies,and destroying a cookie and keeping security to the user,There are four links on my webpage ,including a logout link,when i click the other links other than the logout,it works perfectly,and when i click the logout link,i am not able to disable the cookie and still able to visit previous pages by clicking the back button.please give a suggestion as such to disable the cokie and maintain the security for my web site.
Thank u....

Try out this login if it helps you.
Create a bean that stores some String value. Then make a object of this bean using the useBean tag with session scope when a user logs in. Store the name of the user in the bean and also set the same name value in the Session object. Then on every JSP page compare the value set in the session object with the bean variable (which will be having a session scope). If the value match, then the JSP page output must be displayed to the user. Then on the logout link, invalidate the session object using the invalidate() method of the session class. As a result now when you will try to navigate back to the old JSP page, null will be returned to you when you will try to retrive the name value from the session object. And since this null will not match with the value in the bean, you should not proceed further with generating the output. Hope this help
Nirav ([email protected])

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