<?
	class cleanup
	{		
		public function filter_empty($object)
		{	
			$new_variables = array();
			
			foreach($object AS $key => $value)
				if(!is_array($value) && !is_object($value))
					if($value == "")
						$new_variables[$key] = "-";
											
			if(is_array($object))
				$return_value = array_merge($object,$new_variables);
			else if(is_object($object))
				$return_value = $new_variables;

			return $return_value;
		}	

		public function refilter_empty($object)
		{	
			$new_variables = array();
			
			foreach($object AS $key => $value)
				if(!is_array($value) && !is_object($value))
					if($value == "-")
						$new_variables[$key] = "";
											
			if(is_array($object))
				$return_value = array_merge($object,$new_variables);
			else if(is_object($object))
				$return_value = $new_variables;

			return $return_value;
		}				
	}
?>