[dark256]

Ну вот к примеру тупо навскидку.
jump:Array = {"1","34","15","40"} - номера картинок с промежуточными анимациями.

var targ = any_clip
 
var jump:Array = {"1","34","15","40"}
var walk:array = {"17","18","19","20"}
 
function getBitMap( mov:MovieClip, linkageId:String ){
	var myBitmapData:BitmapData = BitmapData.loadBitmap(linkageId) 
	mov.attachBitmap(myBitmapData, 10)
	mov.forceSmoothing = true
	return myBitmapData
}
 
function makeWalk()
{
    var count = 0
    var mov = targ.createEmptyMovieClip( "body_mov", 100 )
 
    mov.id = setInterval( mov, "nextFrame", 100)
    mov.nextFrame = function()
    {
       getBitMap( this, walk[count] )
       count++
       if ( count == walk.length ) count = 0
    }
 
}