function toggle(what) {
	if ( $(what).attr("state") == "closed" ) {
		$(what).attr("state", "open");
		$(what).text("-");
		$(what.parentNode).next().show("fast");
	} else {
		$(what).attr("state", "closed");
		$(what).text("+");
		$(what.parentNode).next().hide("fast");
	}
	return false;
}