Loading while loading function help please

programming flash
1

Ive got a menu on top of my page which has a few buttons. On each button press, I have a standard “_root.pages.gotoAndStop(frame#);” and also a function call which loads a different picture into the background. So, the page appears, and a loader shows “LOADING BACKGROUND” and then once its loaded it fades in overtop of whatever picture was there.

Problem is…if I click the buttons fast (before the background loaded), the pages work fine, but since the background didnt fully load, the correct background for each page seems to get confused and isnt right.

Here’s the function that loads the back pictures…


var fadespeed = 5;

function load_pic(myLoad, myNum:Number) {
    //if current page, do nothing
            if (_root.prior != myNum) {
                
    var mcLoader:MovieClipLoader = new MovieClipLoader();
    var listener:Object = new Object();
    
    listener.onLoadStart = function(targetMC:MovieClip) {
    //set new holder alpha to 0
        _root.mc_backpics["img"+ myNum]._alpha = 0;
        //bring new holder to top
        _root.mc_backpics["img"+ myNum].swapDepths(_root.mc_backpics["img" + _root.prior]);
        //show loading progress
        _root.backpicloader._visible = true;
    };
    listener.onLoadProgress = function(targetMC:MovieClip, bytesLoaded:Number, bytesTotal:Number) {
        var percent:Number = Math.round(bytesLoaded/bytesTotal*100);
      _root.backpicloader.text = percent; 
    };
    listener.onLoadInit = function(targetMC:MovieClip) {
        //set size of new background pic
        _root. mc_backpics["img"+myNum].myPic._height = System.capabilities.screenResolutionY;
        _root. mc_backpics["img"+myNum].myPic._width = System.capabilities.screenResolutionX;
        _root.backpicloader._visible = false;
       
       targetMC.onEnterFrame = function() {
           //when loaded, fade in
            if (targetMC._alpha<100) {
                targetMC._alpha += fadespeed;
            } else {
                //when finished fading in, set previous photo and previous previous
                _root.minusone = _root.prior
                _root.prior = myNum;
                
                delete targetMC.onEnterFrame;
                 if (_root.minusone != _root.prior) {
                     //prevent old images from reappearing when alpha fades
                _root. mc_backpics["img"+minusone]._alpha = 0;
                //no longer need img0 after img1 is loaded
                _root.mc_backpics.img0._visible = false;
                 }
            }
        };
    };
    mcLoader.addListener(listener);
    mcLoader.loadClip(myLoad,_root.mc_backpics["img"+myNum]);
            }
};

Ive heard that you cant cancel the loading of a swf… I dont care if it keeps loading but Id maybe like to set up a listener or implement some code that just checks to make sure the correct picture is being displayed at all times and if its not, load that one.

Thanks!
Rich