Moving Object: Return to base position first!

Hello,

I have the following problem: i want to move an object (graphic/movieclip/whatever) to different positions by the use of several buttons. The problem is however that I dont know how to do this…hehe…is there some code to let the object first return to the start position, and after this to the position it is assigned to? Or is it also possible that, through actionscript, the object directly “tweens” towards the designated position?

Hope someone can help me with this.