How do you avoid NaN%loaded

programming flash
1

I am trying to avoid NaN%loaded showing up on my preloader when loading images before the image loads.

I tried adding this if() statement, but it still shows NaN%loaded for a short while.

ActionScript Code:
[FONT=Courier New][LEFT]circs.[COLOR=#0000FF]onEnterFrame[/COLOR] = [COLOR=#000000]**function**[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
    t = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]_parent[/COLOR].[COLOR=#000080]container2[/COLOR].[COLOR=#0000FF]getBytesTotal[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR];
    l = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]_parent[/COLOR].[COLOR=#000080]container2[/COLOR].[COLOR=#0000FF]getBytesLoaded[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR];
    [COLOR=#0000FF]loaded[/COLOR] = l/t*[COLOR=#000080]100[/COLOR];
    [COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR][COLOR=#0000FF]loaded[/COLOR] == [COLOR=#000080]100[/COLOR] && l>[COLOR=#000080]4[/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
        bars.[COLOR=#0000FF]_visible[/COLOR] = [COLOR=#000000]**false**[/COLOR];
        loaded_txt.[COLOR=#0000FF]_visible[/COLOR] = [COLOR=#000000]**false**[/COLOR];
        [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]removeMovieClip[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR];
        [COLOR=#0000FF]delete[/COLOR] [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]onEnterFrame[/COLOR];
    [COLOR=#000000]}[/COLOR] [COLOR=#0000FF]else[/COLOR] [COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR][COLOR=#0000FF]this[/COLOR].[COLOR=#000080]circle[/COLOR]._xscale<[COLOR=#000080]900[/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
        [COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR][COLOR=#0000FF]loaded[/COLOR]!==[COLOR=#0000FF]undefined[/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
            bars.[COLOR=#000080]bar1[/COLOR].[COLOR=#0000FF]_xscale[/COLOR] = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]round[/COLOR][COLOR=#000000]([/COLOR][COLOR=#0000FF]loaded[/COLOR][COLOR=#000000])[/COLOR];
            loaded_txt.[COLOR=#0000FF]text[/COLOR] = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]round[/COLOR][COLOR=#000000]([/COLOR][COLOR=#0000FF]loaded[/COLOR][COLOR=#000000])[/COLOR]+[COLOR=#FF0000]"%loaded"[/COLOR];
        [COLOR=#000000]}[/COLOR] [COLOR=#0000FF]else[/COLOR] [COLOR=#000000]{[/COLOR]
            loaded_txt.[COLOR=#0000FF]text[/COLOR] = [COLOR=#FF0000]"0%loaded"[/COLOR];
        [COLOR=#000000]}[/COLOR]

[/LEFT]
[/FONT]

What’s the proper way to code that so it displays “0%loaded” until it starts loading?

thanks!