عاوز افهم الكود ده ؟؟؟؟

{
private var wevent:WhiteboardEvents;
//Default text settings
private var tcolor:String = "#0B333C ";
private var fontsize:Number;
private static var ref;
public function applyDrawingOnWhiteboard(drawingarea:MovieClip){
drawingarea.val = this; /// <=============== يعني ايه الجمله دي ؟؟؟؟؟ this = movieclip.val ??!! هل معناه اجعل الكلاس بتاعي موفي كليب

drawingarea.onRelease = function(){
var draw_MC:MovieClip = this.createEmptyMovieClip("draw_MC"+this.val.wevent.movie_COUNT,DepthUtils.getNextDepth());

this.val.movieRefer = draw_MC;/// <=============== يعني ايه الجمله دي ؟؟؟؟ ايه المعرف اللي اسمه val ده ؟؟؟

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}
}

class com.free.whiteboard.TextDrawing