Multiple dialog Application

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MFC

I want to make a multiple dialogue application in which I can move forward and backward between different dialogues like we do in some setup files by pressing button Next and back , So far i am using doModal function , I can move in one direction i.e. forward but when I come back dialogue lost its functionality i.e. it doesn't move forward.
Here is the piece of code for first dialogue button:



OnOK();
New a; //second dialogue object
a.DoModal(); //
For Second one :


CDialog d (IDD_DIALOGCREATION_DIALOG);// first dialogue object
d.DoModal();