codice:
(function($) {
    jQuery.fn.dynTable = function(options) {
		var defaults = {  
			
		};  
		var options = $.extend(defaults, options);  

		_fnBindAction = function(obj, action, fn ){
			$(obj).bind(action, fn);
		}
		
		_fnChangeLength = function(){
			alert($parent.html());
		}

		return this.each(function(){
			var $parent = jQuery(this);
						
			_fnBindAction(jQuery(this).find(".dataTables_length select"),'change',_fnChangeLength);
		})
		
		
		return this;
    }
})(jQuery);