void script_1783(int arg0,int arg1,int arg2,int arg3) {
	int ivar4;
	if (arg2 == -1) {
		if (setWidgetRegister(new WidgetPointer(arg1), 1)) {
			script_157(arg1, arg0, 0, 1);
		}
		return;
	}
	ivar4 = 0;
	if (setWidgetRegister(new WidgetPointer(arg2), arg3) || ((arg3 == -1) && setWidgetRegister(new WidgetPointer(arg2)))) {
		ivar4 = add(getWidgetActualY(), divide(getWidgetActualHeight(), 2));
		ivar4 = subtract(ivar4, divide(getWidgetActualHeight(new WidgetPointer(arg0)), 2));
		if (setWidgetRegister(new WidgetPointer(arg1), 1)) {
			script_157(arg1, arg0, ivar4, 1);
		}
	}
	return;
}