FGS Randomiser

Am using the script in a flash movie to load in a randomly selected .swf.
This works fine except that it completely reloads the movie with the new one, and i need to retain
some elements from the original, therefore need to load the new movie into the old one...

Can someone show me what I need to do?


// all variables are global so they will be available
// as we load new swfs into level 0...
_global.fileNames = ["home_bot_alex.swf","home_bot_jackson.swf","home_bot_rob_gym.swf","home_bot_rob_webber.swf","home_bot_ross.swf","home_bot_simon.swf"];
//get random file while checking against the last one
_global.getRandomFile=function(oldFile){
do { var newFile = fileNames[Math.round(Math.random()*(fileNames.length-1))]; }
while (oldFile==newFile);
return newFile;
}
_global.loadRandomFile=function(){
_global.fileToLoad = getRandomFile(_global.fileToLoad);
loadMovieNum(fileToLoad,0);
}