AS3 XML Loading - 加载函数外部不存在变量

//Generating menu from XML
var linksXML:XML;
var linksLoader:URLLoader = new URLLoader();
var linksDB:Array = new Array();
linksLoader.load(new URLRequest("menu_links.xml"));
linksLoader.addEventListener(Event.COMPLETE, processXML);
function processXML(evnt:Event):void {
    linksXML = new XML(evnt.target.data);
    for (var i:int = 0; i < linksXML.link.length(); i++){
        var newLink:Array = [linksXML.link[i].@name, linksXML.link[i].@param, linksXML.link[i]];
        linksDB[i] = new Array(newLink);
        trace(linksDB);
    }
}
trace(linksXML.*);
//Generating menu from XML
var linksXML:XML;
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