as2 preloader. request help with small thing

1

Basically what i have is a intro mc on frame 1… then frame 2 is my preloader. then frame 3 is my videoclip atm. What i want to happen is have the preloader to at least appear for a small interval. So intro movie plays, then preloader plays. for a desired interval by going into the preloader_mc mc for a smalla mount of time. As of right now it loads to fast and the preloader_mc just goes right into scene3.

hi here is my preloader code

// Preloader Script
// ==================================================
this.onEnterFrame = function() {
var bl = _root.getBytesLoaded();
var bt = _root.getBytesTotal();
var percent = Math.round((bl/bt)*100);

preloader_mc.percentage_txt.text = percent+"%";
preloader_mc.gotoAndStop(percent);
if (bl == bt) {
    preloader_mc.play();
    var myCountdown = setInterval(resumePlay,7000);
    //_root.gotoAndStop(3);
    
}

}
//
stop();
function resumePlay(){
_root.gotoAndStop(3);
clearInterval(myCountdown);
delete this.onEnterFrame;
}

link to what im working on so u can see it
http://www.parabol-designs.com/projects/ride/temp

any help would be lovely