function doVisible(toDoVisible, toHide) {
	if (toHide != null) {
		toHide = toHide.split(" ");
		for (n in toHide) {
			document.getElementById(toHide[n]).style.visibility = "hidden";
		}
	}

	if (toDoVisible != null) {
		toDoVisible = toDoVisible.split(" ");
		for (n in toDoVisible) {
			document.getElementById(toDoVisible).style.visibility = "visible";
		}
	}
}