Dynamic sound problem

programming flash
1

[COLOR=Blue]Hey guys im trying to figure out how to get this sound playing, hope anyone can help out =)[/COLOR]

[COLOR=Blue]When i use this method to attach the sound, from the library with likage it works just fine[/COLOR]
//Waveblirp.attachSound(“Waveblirp”);
[COLOR=Blue]
But i want to load it dynamically so i use this function instead

[/COLOR]var Waveblirp:Sound = new Sound();
Waveblirp.onLoad = function(success:Boolean):Void {
if (success) {
trace(“Sound Loaded”);
}
};
Waveblirp.loadSound(“sounds/Waveblirp.aif”, false);

[COLOR=Blue]So when i use the linkage from library this works, but not with the function above, the sound isn´t playing… please help =)[/COLOR]
slidebackbutton_mc.onRelease = function() {
Waveblirp.start(0,0);
};