Sir, i am implementing a GUI Form in which i have an output area which is for displaying some error messages.

requirements are:
1. at most four message window at a time in that area which are overlapping and we can switch among them using tabs.
2. we can move a particular message window from that place to watch more than one message at a time.

So please suggest me something to implement it.

it is same thing like visual studio 2005 dock widget area at bottom which contain watches and local variable windows at the same time we can switch among them and also move them.