Challenges in Questionaire Form

Hii Friends

I have a FormA in which there is a field which is a lookup from kmCollectionid in Questionaire Form.Now i have another form FormB in which there is a Start Button.Here my requirement is that when we click Start Buttom the Questionaire which we have selected in FormA should be Started.Please help me out in guiding me.Strating the Questuonaire Functionality is there in Questionaire Module (MenuItem:Display with Name Km QuestionaireCompleteList).

Thank You