external as2 userDrawingTablet into as3

"submitter" is a movie clip on the main timeline. this code is inside submitter layed out with a mc named "blackboard". blackboard has a mc named "innerBlackboard" inside of it.

blackboard.clearChalk = function():Void {
    var cl = this._parent._parent.chalkLine;
    this.createEmptyMovieClip("chalkLayer", 0);
    this.chalkLayer.lineStyle(cl.thickness, cl.color, cl.alpha);
    this.drawings = [];
};
blackboard.clearText = function():Void {
    this.createEmptyMovieClip("textLayer", 10);
    this.textfields = [];
};
blackboard.clearAll = function():Void {
    this.clearChalk();
    this.clearText();
};

blackboard.enterDrawMode = function():Void {
    this.innerBlackboard.onPress = this.startDraw;
};
blackboard.startDraw = function():Void {
    var x:Number = Math.round(this._xmouse);
    var y:Number = Math.round(this._ymouse);
    var coordinates = [x + "," + y];
    this._parent.currentDrawing = coordinates;
    this._parent.drawings.push(coordinates);
    this._parent.chalkLayer.moveTo(x, y);
    this._parent.onMouseMove = this._parent.drawChalk;
    this.onRelease = function() {
        delete this._parent.onMouseMove;
    };
};
blackboard.endDraw = function():Void {
    delete this.onMouseMove;
    delete this.innerBlackboard.onRelease;
};
blackboard.drawChalk = function():Void {
    if (this.hitTest(_root._xmouse, _root._ymouse)) {
        var x:Number = Math.round(this._xmouse);
        var y:Number = Math.round(this._ymouse);
        this.currentDrawing.push(x + "," + y);
        this.chalkLayer.lineTo(x, y);
    } else {
        this.endDraw();
    }
    updateAfterEvent();
};

blackboard.enterTextMode = function():Void {
    this.innerBlackboard.onPress = this.startText;
};
blackboard.startText = function():Void {
    var d:Number = this._parent.textLayer.getNextHighestDepth();
    var x:Number = this._parent._xmouse;
    var y:Number = this._parent._ymouse;
    this._parent.textLayer.createTextField("t" + d, d, x, y, this._parent.width - x, this._parent.height - y);
    var tf:TextField = this._parent.textLayer["t" + d];
    this._parent.textfields.push(tf);
    tf.type = "input";
    tf.multiline = true;
    tf.wordWrap = true;
    tf.restrict = "^'<>";
    tf.setNewTextFormat(this._parent._parent._parent.chalkFormat);
    tf.embedFonts = true;
    tf.text = "Type message";
    Selection.setFocus(tf);
    Selection.setSelection(0, tf.text.length);
    tf.onKillFocus = function() {
        this.type = "dynamic";
        this.selectable = false;
    };
};
blackboard.formatEntry = function():String {
    var tf:TextField;
    var d:Object;
    var entryXML    =  "<entry>";
    entryXML        +=         "<text>";
    for (var i:Number = 0; i < this.textfields.length; i++) {
        tf = this.textfields;
        entryXML    +=            "<field x='" + tf._x + "' y='" + tf._y + "' text='" + tf.text + "' />";
    }
    entryXML        +=         "</text>";
    entryXML        +=         "<drawings>";
    for (i = 0; i < this.drawings.length; i++) {
        d = this.drawings;
        entryXML    +=            "<drawing coordinates='" + d.join("|") + "' />";
    }
    entryXML        +=         "</drawings>";
    entryXML        += "</entry>";
    return escape(entryXML);
};

blackboard.clearAll();
blackboard.innerBlackboard.useHandCursor = false;
blackboard.width = blackboard._width;
blackboard.height = blackboard._height;

draw_bn.onRelease = function() {
    blackboard.enterDrawMode();
    text_bn.gotoAndStop("_Up");
    text_bn.enabled = true;
    this.gotoAndStop("_Down");
    this.enabled = false;
};
text_bn.onRelease = function() {
    blackboard.enterTextMode();
    draw_bn.gotoAndStop("_Up");
    draw_bn.enabled = true;
    this.gotoAndStop("_Down");
    this.enabled = false;
};
clear_bn.onRelease = function() {
    blackboard.clearAll();
};
submit_bn.onRelease = function() {
    var name:String = name_if.text;
    if (name == "" || name == "name (required)") return;
    var email:String = email_if.text;
    if (email == "" || email == "email (required)") return;
    entry = new LoadVars();
    entry.name = name;
    entry.email = email_if.text;
    entry.message = blackboard.formatEntry();
    returnEntry = new LoadVars();
    returnEntry.onLoad = traceReturn;
    entry.sendAndLoad("submitEntry.php", returnEntry);
};

function traceReturn() {
    if (this.result == "success") {
        blackboard.clearAll();
    }
}

name_if.onSetFocus = email_if.onSetFocus = function() {
    this.text = "";
    delete this.onSetFocus;
};
name_if.restrict = email_if.restrict = "^'<>";