var Behaviours = {
	apply: function() {
		for (var i=0, len=arguments.length; i<len; i++) {
			var json = arguments[i];
			for (var selector in json) {
				var elements = document.getElementsBySelector(selector);
				if (!elements) continue;
				for (var event in json[selector]) {
					var eventHandler = json[selector][event];
					elements.each(function() {
						$(this).addListener(event, eventHandler);
					});
				} // each event
			} // each selector
		} // each argument
	}
}