How to use map to control flash movement

Q: How can I use a map to control flash movement? Like a pet village in QQ, there is a map in the upper right corner to control the movement of flash on the left?
The ultimate annoyance: using coordinate conversion. Press the mouse to move on the small map to see the changes on the map. Figure, source file to see the attachment.

OnMouseDown = function (){
B = true;
};
OnMouseUp = function (){
B = false;
};
OnMouseMove = function (){
If (x_mc.hitTest (_ xmouse, _ ymouse) & B ){
D_mc.r_mc. _ x = x_mc. _ xmouse/x_mc. _ width * d_mc. _ width;
D_mc.r_mc. _ y = x_mc. _ ymouse/x_mc. _ width * d_mc. _ height;
}
};