Preloader not working !!!

Question

Hi All,
I used 2 preloaders code, but both are not working !!!, what problem with this code ?
script 1
stop();
this.addEventListener(Event.ENTER_FRAME, loading);
function loading(e:Event):void
          var total:Number = this.stage.loaderInfo.bytesTotal;
          var loaded:Number = this.stage.loaderInfo.bytesLoaded;
          loader.kolam.loadTxt.text = Math.floor((loaded/total)*100);
          if (total == loaded)
                    this.removeEventListener(Event.ENTER_FRAME, loading);
                    loader.nextFrame()
script 2
var preLoaderPercent:Number;
this.loaderInfo.addEventListener(Event.COMPLETE, loadComplete);
this.loaderInfo.addEventListener(ProgressEvent.PROGRESS, loadProgress);
function loadComplete(e:Event)
          this.loaderInfo.removeEventListener(Event.COMPLETE, loadComplete);
          this.loaderInfo.removeEventListener(ProgressEvent.PROGRESS, loadProgress);
     loader.nextFrame();
function loadProgress(e:ProgressEvent):void
          preLoaderPercent = e.bytesLoaded / e.bytesTotal;    
     loader.kolam.loadTxt.text = preLoaderPercent;

Answer 1

You could say as3 is fixed for expected behavior. Why should an ENTER_FRAME event fire off before the document is even loaded?
A preloader is always a good idea. Give it a try. Being there's no more as2 nonsense about using _root to gain access to movieclips and code, a preloader won't screw up your code anymore by being what we used to think of as "_root".
Try building the stub as I mentioned and use the Loader class to load that SWF. Here's a tutorial.
e.g.
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.events.ProgressEvent;
// init a new loader
var preload:Loader = new Loader();
// listen for loading complete
preload.contentLoaderInfo.addEventListener(Event.COMPLETE, preloadCompleteHandler);
// listen for errors
preload.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, preloadErrorHandler);
// listen for progress!
preload.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, preloadProgressHandler);
// load my content
preload.load(new URLRequest("myContent.swf"));
// handlers
// handle complete
function preloadCompleteHandler(e:Event):void
     // load complete! add to display list, remove preloader visuals, etc
     addChild(preload); // a loader is a display object, you can add it directly
// handle error
function preloadErrorHandler(e:IOErrorEvent):void
     // do what you wish if there is an error loading the SWF
     trace(e);
// progress handler
function preloadProgressHandler(e:ProgressEvent):void
     // display the progress in some way
     var bytesLoaded:int = e.bytesLoaded;  // current bytes loaded
     var bytesTotal:int = e.bytesTotal;         // total bytes to load
     // now do what you want, like ver a percent loaded
     var percent:Number = bytesLoaded / bytesTotal * 100;
     trace(percent + " loaded");