function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function preloadBullet(){
	bullet1 = newImage("http://www.e-cards.com/area/halloween/images/bullets/pumpkinBullet-over.gif");
	preloadFlag = true;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}


var preloadFlag = false;
preloadBullet();