menu dynamiqe flash xml

bonjour a tous, je suis debutant, je voudrai adapter ce code mais je n'arrive comprendre certain chose quelqu'un peux m'aider svp ou m'explique le code : pathID = _xml.idMap.menu; totM = pathID.childNodes.length; _root.totMM = totM; for (;;) { if (i >= totM) { return; } mcx = mnCntanr.attachMovie("_menuTxt", "btn" + i, i); mcx._alpha = 0; mcx._y = i * 16; mcx._i = i; mcx._txt = pathID.childNodes[i].attributes.btnName; mcx._p = pathID.childNodes[i].attributes.p; mcx._f = pathID.childNodes[i].attributes.f; mcx._h = pathID.childNodes[i].attributes.title; mcx._css = pathID.childNodes[i].attributes.css; mcx._txtT.autoSize = true; mcx.btn._width = mcx._txtT._width; mcx._bgx._width = mcx.btn._width; ++i; } } function FR() { _root.mcolorx = pathID.childNodes[0].attributes.clrx; _root.p = pathID.childNodes[0].attributes.p; _root.f = pathID.childNodes[0].attributes.f; _root._head = pathID.childNodes[0].attributes.title; _root._numb = 0; _root.styler = pathID.childNodes[0].attributes.css; _bg.tween("_width", 300, 0.5); _bg.tween("_alpha", 100, 0.5); _bg._height = Stage.height; _headMC.gotoAndPlay(2); _headMC.tween("_alpha", 100, 0.5); _headMC.tween("_x", 310, 0.5); _arrow.tween("_x", 300, 0.5); _arrow.tween("_alpha", 100, 0.5); _arrow.btn._height = Stage.height / 2 - 100; _arrow.colorTo(_root.menuArrow, 1, Elastic.easeOut, 0, null); this.mnCntanr["btn" + k].btn.enabled = false; this.mnCntanr["btn" + k].MOvr(); } function executeCallback() { if (i == totM) { clearInterval(intervalID); FR(); _root.menuS = true; menuXY(); lockXY(true); _root.Mtwn = true; _root._contetnMC.gotoAndPlay(2); onEnterFrame = function () { new mx.transitions.Tween(this.mnCntanr["btn" + k], "_alpha", normal, this.mnCntanr["btn" + k]._alpha, 100, 0.7, true); ++k; if (k == totM + 1) { onEnterFrame = null; } } ; } } stop(); _logo = _root.logox[0]; _logoT.autoSize = true; _slogT._y = _logoT._y + _logoT._height; _slog = _root.logox[1]; _slogT.autoSize = true; this.createEmptyMovieClip("mnCntanr", this.getNextHighestDepth()); mnCntanr._x = 45; mnCntanr._y = _slogT._y + 60; k = 0; _doneF = function () { _loading._visible = false; menu(); } ; _xml = new XML(); var _path = "dat/xml/xmlx.xml"; _xmlProtyp(_xml, _path, _doneF); i = 0; var intervalID = setInterval(this, "executeCallback", 30);