How to detect last external item loaded?

Question

I can't get my head around this. I know there's a clever way to do this but none of my ideas seem to be the solution. I'd like to dispatch an event when there are no more items to be loaded. I'm working with Drupal and AMFPHP and loading some nodes. The number of nodes may vary from day to day so I need a way to know when the last one has loaded.
In the code below, I am building an array to use elsewhere in the application. Once all nodes have finished loading I'd like to know what the final length of portfolioItems is.
public function onNodeLoad( node:Object )
   //trace("Node loaded");
   if (node.nid == 2) {
          about.aboutText_txt.htmlText = node.body;
   }else {
          var nodeStr:String=baseURL;
          nodeStr+=node.flashnode["filepath"];
          portfolioItems.push(nodeStr);
          portfolio.portItems = portfolioItems;   

Answer 1

Aha, good point! Thanks for the knock in the head.
I can set a counter on the event handler for the View Load, which is where the node loading gets kicked off. Then check to see if I've reached that last item inside the Node Load handler. I'm posting if anyone else needs an example like this.
var loadCounter:Number = 0;
// Called when a view gets loaded.
  public function onViewLoad( _view:Object )
   // Iterate through all of the nodes.
   for each (var node:Object in _view) {
    loadCounter ++;
    // Call Drupal to get the node.
    drupal.loadNode(node.nid, onNodeLoad);
   showAllElements();
// Called when Drupal returns with our node.
  public function onNodeLoad( node:Object )
   if (node.nid == 2) {
    //trace(node.body);
    about.aboutText_txt.htmlText = node.body;
   }else{
     var nodeStr:String=baseURL;
     nodeStr+=node.flashnode["filepath"];
     portfolioItems.push(nodeStr);
    if(portfolioItems.length == loadCounter){
          portfolio = new Portfolio();
          addPortfolio();
          portfolio.portItems = portfolioItems;