Draw() matrix.Scale, matrix.Translate, Help!

[as3newb]

This works! ENJOY!

MyDraw(srcbmpdata,dx,dy,width,height,scalex,scaley ,dstbmpdata)
{
var trans:Matrix = new Matrix();
trans.translate(-(width/2), -(height/2));
trans.scale(scalex, scaley); 
trans.translate(width/2, height/2);
trans.translate(dx-(width/2), dy-(height/2));
dstbmpdata.draw(srcbmpdata, trans, null,null,null,true);		
}