Small function problem

Hi

I just created a simple function for placing my preloaders on the scene but i’m having some trouble.

can somebody help me. I know the problem is in preloaderInstanceName, but i don’t know how to resolve it.

placePreloader = function(preloaderInstanceName, posX, posY, depth) {
	this.attachMovie("preloader",preloaderInstanceName, depth);
	preloaderInstanceName._x = posX;
	preloaderInstanceName._y = posY;
}

placePreloader("preloaderNews", 400, 100, 10);
placePreloader("preloaderIntro", 300, 100, 20);

thx in advance