Question about loading external swfs

hey guys i would like to create this preloader that loads an swf right away when it is played. Then when one of the buttons is pressed it will go away and display the other swfs. Basically it is loading the homepage. Sounds relativly simply but I cannot figure out how to do this. Please help. This is the coding i have so far…

home_btn.onPress = function(){
startPreload(“home.swf”);
}

brothers_btn.onPress = function(){
startPreload(“about.swf”);
}
history_btn.onPress = function(){
startPreload(“links.swf”);
}
mission_btn.onPress = function(){
startPreload(“help.swf”);
}
rush_btn.onPress = function(){
startPreload(“gallery.swf”);
}
contacts_btn.onPress = function(){
startPreload(“contacts.swf”);
}

function startPreload(url){

preloader_mc.url = url;

preloader_mc.target = content_mc;

preloader_mc.gotoAndPlay(5);
}
stop();

Thanks in advance!!