asp.net

Thanks ,for example our company intranet has window sections eg one for the cognos application i want to append some minimize and maximize buttons such that i can make the cognos application occupy the whole screen in order to have a good view of project ratios graph of my company

Am looking for a code that will help me add minimize and maximize buttons in a dfd in my company intarnet website. please anyone having a clue how i can do it please help.