how to make a child form open up in same x and y axis inside MDI form

[kyle2003]

I have a child form inside my MDI. every time i close this child form and open it again it opens up on different parts of mdi form. I want it always to open up on the TOP LEFTMOST corner of the MDI form. Could someone please tell me how to do that. Also how to make the second child form always open up in the middle of the screen. thanks.