Generalised toggling of an element using jQuery; could be a button, a panel that opens/closes, pause button etc

toggle.js

function toggle(id, callbackOn, callbackOff) {
	if($('#' + id).data("toggledOn")) { // Turn off
		$('#' + id).data("toggledOn",false);
		callbackOff();
	} else {                            // Turn on
		$('#' + id).data("toggledOn",true);
		callbackOn();
	}
}