package bontos
{
    import flash.events.Event;
    import flash.events.IOErrorEvent;
    import flash.net.URLLoader;
    import flash.net.URLRequest;
    
	/** 
	 * Load XML and call function named in 2 parameter:<br>
	 * <i>url</i> - for XML file<br>
	 * <i>call back function</i> - called on complete loaded xml file<br>
	 *  <br><br>
	 * Default url = "images.xml"
	 * 
	 * */
    public class ReaderXML
    {
        public var xmlObj: XML = new XML();

		private var urlForDefaultXML: String = "images.xml";
		private var myLoader: URLLoader;
		private var callBackFunction: Function;
		
		
        public function ReaderXML(aUrl: String, callBackFunc: Function)
        {
			aUrl = (!aUrl || aUrl == 'null' || aUrl.length < 5) ? urlForDefaultXML : aUrl;
			callBackFunction = callBackFunc;
            var myXMLURL:URLRequest = new URLRequest(aUrl);
            try{
	            myLoader = new URLLoader(myXMLURL);
	            myLoader.addEventListener(Event.COMPLETE, xmlLoaded);
	            myLoader.addEventListener(IOErrorEvent.IO_ERROR, onError);
            }catch(e:Error){}
        }
 
        private function xmlLoaded(event:Event):void{
            xmlObj = XML(myLoader.data);
			trace('xml loaded');
            if(callBackFunction != null) {
				callBackFunction(xmlObj);
            }
        }
        
        private function onError(event:IOErrorEvent):void{
			trace(' IO_ERROR xml == ', event.text);
        }
    }
}