var currentBox=null;
function TurnPictureOn(tid) {
	if (currentBox) TurnPictureOff(currentBox, true);
	currentBox=tid;
	document.getElementById(tid).style.display = "";
}
function TurnPictureOff(tid, noForce) {
	document.getElementById(tid).style.display = "none";
	if (!noForce) TurnPictureOn("default");
}