Convert Object to String

I am trying to get the name of a MovieClip that the user is clicking on.  I am  getting an error at setting the startX value.  Iss there a way to do this? Thanks.

Here is a sample code:

var MC;

function T01MouseDown(event:MouseEvent):void

{

          trace("Tomato 01 Down");

          trace(event.target.name);

          MC = (event.target.name);

          //trace(MC);

          startX = MC.x;

          startY = event.currentTarget.name.y;

          event.currentTarget.parent.setChildIndex(event.currentTarget,event.currentTarget.parent.numChildren - 1);

          event.currentTarget.name.startDrag();

          stage.addEventListener(MouseEvent.MOUSE_UP, stage_onMouseUp);

          currentClip = event.currentTarget.name;

          trace(currentClip);

}