[Codemonkey]

 
If for some reason you think "Why is this or that tracing undefined??" or "Why isn't my function executing omg!". Then for the love of God, think of Delegates!! Search Ultrashock on the word "scope" and "Delegate" and don't ask us again please

Classic example:

class MyXMLParser {
    var books:Array = new Array();
 
    function doIt() {
        var xml:XML = new XML();
        xml.onLoad = parseXML;
        xml.load("books.xml");
    }
 
    function parseXML(success:Boolean) {
        // parse xml stuff
        books.push(book_from_xml); // BUZZ, can't find books!
    }
} 

Books couldn't be found, because when the xml object calls parseXML, the scope is in the xml object, not MyXMLParser. And so you can't access books because it isn't in the xml object.

Fix this with a Delegate:

import mx.utils.Delegate;
 
class MyXMLParser {
    var books:Array = new Array();
 
    function doIt() {
        var xml:XML = new XML();
        xml.onLoad = Delegate.create(this, parseXML);
        xml.load("books.xml");
    }
 
    function parseXML(success:Boolean) {
        // parse xml stuff
        books.push(book_from_xml); // DING, can find books!
    }
}