Can anyone optimize this?

1

In one the pages in my site I have three seperate areas that have scrollable text and pictures. The code I am using for the scrolling uses huge amounts of CPU power. It bogs down the entire flash page. Does anyone see how I could perhaps optimzie this code to save some cpu consumtion? (btw- all text is static text)

Here’s the code:

import flash.filters.BlurFilter;
blur = new BlurFilter(0, 10, 1);



scrolling = function (easing)
{
    var moveSpeed:Number = 5;
    var easingSpeed:Number = 4;
    var scrollHeight:Number = scrollbg._height;
    
    var scrollable:Number = contentMain._height-maskedView._height;
    var initContentPos:Number = contentMain._y;
    // the drag positions that are possible for the dragger
    var left:Number = scrollbg._x;
    var top:Number = scrollbg._y;
    var right:Number = scrollbg._x;
    var bottom:Number = scrollbg._height-dragger._height+scrollbg._y;
    if (scrollable<0)
    {
        dragger._visible = false;
        btnUp.enabled = false;
        btnUp._alpha = 50;
        btnDown._alpha = 50;
        scrollbg._alpha = 50;
        btnDown.enabled = false;
        return;
    }
 
    function updateContentPos()
    {
        var percent_scrolled:Number = (dragger._y-top)/(scrollHeight-dragger._height);      
        
        contentMain.newY = Math.round(initContentPos-(percent_scrolled*scrollable));
    }

    contentMain.onEnterFrame = function()
    {
        if (!easing || easing == undefined)
        {
            this._y = this.newY;
        }
        else
        {
            this._y += (this.newY-this._y)/easingSpeed;
            
            mainMovement = this.newY-this._y;
            
            blur.blurY = Math.floor(Math.abs(mainMovement));
        contentMain.filters = [blur];
        }
    };
    dragger.onPress = function()
    {
        startDrag(this, false, left, top, right, bottom);
        this.onMouseMove = function()
        {
            updateContentPos();
        };
    };
    dragger.onMouseUp = function()
    {
        stopDrag();
        delete this.onMouseMove;
    };
    btnUp.onPress = function()
    {
        this.onEnterFrame = function()
        {
            dragger._y = Math.max(top, dragger._y-moveSpeed);
            updateContentPos();
        };
    };
    btnUp.onDragOut = function()
    {
        delete this.onEnterFrame;
    };
    btnUp.onRelease = function()
    {
        delete this.onEnterFrame;
    };
    btnDown.onPress = function()
    {
        this.onEnterFrame = function()
        {
            dragger._y = Math.min(bottom, dragger._y+moveSpeed);
            updateContentPos();
        };
    };
    btnDown.onRelease = function()
    {
        delete this.onEnterFrame;
    };
    btnDown.onDragOut = function()
    {
        delete this.onEnterFrame;
    };
   
    updateContentPos();
};

scrolling(true);

Any help would be much appreciated