Varför får jag detta felmeddelande när man ändrar comboboxen??? Externaldocs fungerar annars.

ArgumentError: Error #1063: Argument count mismatch on Inspiration_fla::MainTimeline/ExternalDocs(). Expected 0, got 1.
at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunctio n()
at flash.events::EventDispatcher/dispatchEvent()
at fl.controls::ComboBox/fl.controls:ComboBox::onListChange()
at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunctio n()
at flash.events::EventDispatcher/dispatchEvent()
at fl.controls::SelectableList/fl.controls:SelectableList::handleCellRendererClic k()


Här följer ett utdrag ur koden.

import fl.controls.listClasses.*;
import fl.core.UIComponent;
import fl.data.DataProvider;
import flash.net.URLLoader;
import flash.net.URLLoaderDataFormat;
import flash.net.URLRequest;


var dp:DataProvider = new DataProvider();
dp.addItem( { label: "Prisgrupp1", data:1 } );
dp.addItem( { label: "Prisgrupp2", data:2 } );
dp.addItem( { label: "Prisgrupp3", data:3 } );
dp.addItem( { label: "Prisgrupp4", data:4 } );
dp.addItem( { label: "Prisgrupp5", data:5 } );
dp.addItem( { label: "Prisgrupp6", data:6 } );

var cb:ComboBox = new ComboBox();
cb.move(16,370);
cb.setSize(265,25);
cb.rowCount = 12;
cb.dataProvider = dp;
addChild(cb);
cb.selectedIndex=0;
cb.addEventListener(Event.CHANGE, ExternalDocs);


var myLoader:URLLoader = new URLLoader();
ExternalDocs();


function ExternalDocs(){
myLoader.load(new URLRequest("inspiration/flash.asp?kladsel=B"));
myLoader.addEventListener(Event.COMPLETE, onLd);
}

function onLd(ev:Event){
trace (myLoader.data);
}