DisplacementMapFilter

Hi,
here my code :

import flash.filters.*;
import flash.display.BitmapData;
import flash.geom.ColorTransform;
import flash.geom.Rectangle;
import flash.geom.Matrix;
//
bitmap = BitmapData.loadBitmap(‘fond’);
//fond is the linking name of the gradient in the library
var mc:MovieClip = this.createEmptyMovieClip(“mc”, 1);
mc.attachBitmap(bitmap, 1);
//////////
displac = new DisplacementMapFilter(bitmap, new Point(0, 0), 1, 1, 10, 10, “clamp”);
////////
typo.blendMode = ‘multiply’;
typo.swapDepths(mc);
//
//DisplacementMapFilter(mapBitmap:BitmapData, mapPoint:Point, componentX:Number, componentY:Number, scaleX:Number, scaleY:Number, [mode:String], [color:Number], [alpha:Number])
_onEnterFrame = function () {
typo._x += 5;
typo.filters = [displac];
};
inter = setInterval(this, “_onEnterFrame”, 100);

typo is an mc on stage and move on _x (typo._x += 5) but the filter don’t follow
thanks