Is it possible?

Hey Im trying to make a game similar to an RTS and I was wondering if it was possible to be able to select move clips while moving by clicking and dragging

[COLOR=#003366]http://[/COLOR][URL=“http://www.swfcabin.com/open/1273634526”][COLOR=#003366]www.swfcabin.com/open/1273634526[/COLOR]

 
for (i=0; i<4; i++) {
 nano = this.attachMovie("ball", "ball"+i, this.getNextHighestDepth());
 nano._x = Math.random()*(Stage.width-nano._width);
 nano._y = Math.random()*(Stage.height-nano._height);
 nano.onRelease = function() {
  target = this;
  this.gotoAndStop(2);
 };
 nano.onReleaseOutside = function() {
  target = this;
  this.gotoAndStop(2);
 };
 nano.onEnterFrame = function() {
  if (dragging) {
   if ((this._x+10>Math.min(click_x, posx)) and (this._x-10<Math.max(click_x, posx)) and (this._y+10>Math.min(click_y, posy)) and (this._y-10<Math.max(click_y, posy))) {
    target = this;
    this.gotoAndStop(2);
    select = true;
 
   } else {
    if (!select) {
     this.gotoAndStop(1);
    }
   }
   if (select) {
    selmovie.clear();
   }
  }
 };
 nano.gotoAndStop(1);
}

I have code in there now that allows me to select a unit before it starts moving but after I move it with the arrow keys it doesnt work anymore for some reason does anyone know why this is?