_level Loader

I have this loader set up but it won't recognize the level in order to get the bytesloaded and bytesTotal. I am sending the level as a parameter to the function

Code:

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//====== Inital Level Loader ===============
levelLoader = function (file, level) {
        lev = "_level"+level;
        loader_holder._x = 600.0;
        loadMovieNum(file, level);
        trace("LEV  :"+lev);
        progressCheck.onEnterFrame = function() {
                var percent = (lev.getBytesLoaded()/lev.getBytesTotal())*100;
                if (!isNan(percent)) {
                        _root.loader_holder.bar._xscale = percent;
                } else {
                        trace("0% loaded");
                }
                if (percent == 100 && lev.getBytesLoaded()>1) {
                        delete progressCheck.onEnterFrame;
                        loader_holder._x = 846.0;
                        trace("LEVEL: "+level+"      "+"IS FULLY LOADED");
                }
        };
};
levelLoader("squares.swf", 9);

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Why will this not work? The lev variable is not been read as a path but as a string. I have even used the [] operator to access the level but no joy. Can anyone help?

This one seems to work...

Code:

---

//====== Inital Level Loader ===============
levelLoader = function (file, level) {
        lev = "_level"+level;
        loader_holder._x = 600.0;
        loadMovieNum(file, level);
        trace("LEV  :"+lev);
        progressCheck.onEnterFrame = function() {
                var percent = (this["_level"+level].getBytesLoaded()/this["_level"+level].getBytesTotal())*100;
                //trace (percent);
                //trace((this["_level"+level].getBytesLoaded()/this["_level"+level].getBytesTotal())*100);
                if (!isNan(percent)) {
                        _root.loader_holder.bar._xscale = percent;
                } else {
                //trace(lev);
                        trace("0% loaded");
                }
                if (percent == 100) {
                        delete progressCheck.onEnterFrame;
                        loader_holder._x = 846.0;
                        trace("LEVEL: "+level+"      "+"IS FULLY LOADED");
                }
        };
};
levelLoader("ringB.swf", 9); // tried it with one of my files...

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Ah nice one I tried everything but the right thing. Thanks
YAAAAAAAA:D