2 scrollbars in one movie

programming flash
1

How can I put 2 scrollbars (by Claudio) on 1 page? I tried to change all the instance names of the buttons, main, mask, bar and dragger but now it freaks :s.

scrollbar1:

fscommand("allowscale", "false");

bis_bar.useHandCursor = bis_dragger.useHandCursor = false;

space = 20;
friction = 0.9;
speed = 4;

y = bis_dragger._y;
top = bis_main._y;

bottom = bis_main._y+bis_mask_mc._height-bis_main._height-space;

bis_dragger.onPress = function() {
	drag = true;
	this.startDrag(false, this._x, this._parent.y, this._x, this._parent.y+this._parent.bis_bar._height-this._height);
	bis_dragger.scrollEase();
};

bis_dragger.onMouseUp = function() {
	this.stopDrag();
	drag = false;
};

bis_bar.onPress = function() {
	drag = true;
	if (this._parent._ymouse>this._y+this._height-this._parent.bis_dragger._height) {
		this._parent.bis_dragger._y = this._parent._ymouse;
		this._parent.bis_dragger._y = this._y+this._height-this._parent.bis_dragger._height;
	} else {
		this._parent.bis_dragger._y = this._parent._ymouse;
	}
	bis_dragger.scrollEase();
};

bis_bar.onMouseUp = function() {
	drag = false;
};

movebis_dragger = function (d) {
	if ((bis_dragger._y>=y+bis_bar._height-bis_dragger._height && d == 1) || (bis_dragger._y<=y && d == -1)) {
		clearInterval(myInterval);
	} else {
		bis_dragger._y += d;
		bis_dragger.scrollEase();
		updateAfterEvent();
	}
};

bis_up_btn.onPress = function() {
	myInterval = setInterval(movebis_dragger, 18, -1);
};

bis_down_btn.onPress = function() {
	myInterval = setInterval(movebis_dragger, 18, 1);
};


bis_up_btn.onMouseUp = bis_down_btn.onMouseUp = function () {
	clearInterval(myInterval);
};

MovieClip.prototype.scrollEase = function() {
	this.onEnterFrame = function() {
		if (Math.abs(dy) == 0 && drag == false) {
			delete this.onEnterFrame;
		}
		r = (this._y-y)/(bis_bar._height-this._height);
		dy = Math.round((((top-(top-bottom)*r)-bis_main._y)/speed)*friction);
		bis_main._y += dy;
	};
};

scrollbar2:

fscommand("allowscale", "false");

sub_bar.useHandCursor = sub_dragger.useHandCursor = false;

space = 20;
friction = 0.9;
speed = 4;

y = sub_dragger._y;
top = sub_main._y;

bottom = sub_main._y+sub_mask_mc._height-sub_main._height-space;

sub_dragger.onPress = function() {
	drag = true;
	this.startDrag(false, this._x, this._parent.y, this._x, this._parent.y+this._parent.sub_bar._height-this._height);
	sub_dragger.scrollEase();
};

sub_dragger.onMouseUp = function() {
	this.stopDrag();
	drag = false;
};

sub_bar.onPress = function() {
	drag = true;
	if (this._parent._ymouse>this._y+this._height-this._parent.sub_dragger._height) {
		this._parent.sub_dragger._y = this._parent._ymouse;
		this._parent.sub_dragger._y = this._y+this._height-this._parent.sub_dragger._height;
	} else {
		this._parent.sub_dragger._y = this._parent._ymouse;
	}
	sub_dragger.scrollEase();
};

sub_bar.onMouseUp = function() {
	drag = false;
};

movesub_dragger = function (d) {
	if ((sub_dragger._y>=y+sub_bar._height-sub_dragger._height && d == 1) || (sub_dragger._y<=y && d == -1)) {
		clearInterval(myInterval);
	} else {
		sub_dragger._y += d;
		sub_dragger.scrollEase();
		updateAfterEvent();
	}
};

sub_up_btn.onPress = function() {
	myInterval = setInterval(movesub_dragger, 18, -1);
};

sub_down_btn.onPress = function() {
	myInterval = setInterval(movesub_dragger, 18, 1);
};


sub_up_btn.onMouseUp = sub_down_btn.onMouseUp = function () {
	clearInterval(myInterval);
};

MovieClip.prototype.scrollEase = function() {
	this.onEnterFrame = function() {
		if (Math.abs(dy) == 0 && drag == false) {
			delete this.onEnterFrame;
		}
		r = (this._y-y)/(sub_bar._height-this._height);
		dy = Math.round((((top-(top-bottom)*r)-sub_main._y)/speed)*friction);
		sub_main._y += dy;
	};
};

greetz jakke