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/* It may sound funny but loader
with small “L” is not a reserved word
therefore available for a variable name,
while Loader with Capital “L” is
a reserved word and becomes blue */

function fileLoaded(event:Event):void{

addChild(loader);
}

function preload(event:ProgressEvent):void {
var percent:Number = Math.round(event.bytesLoaded / event.bytesTotal *100);

/* both values are received on the function
through the Progress event */

// Dynamic text boxes accept only strings, so the value has to be transformed into string, using the string function.

preload_txt.text = String(percent) + “%”;

}

/* Now the code */

// This function fires when the Loading is Completed
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, fileLoaded);

// This function happens during loading.
loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, preload);
loader.load(req);