<?php 
class AppModel extends Model { 
	var $_behaviors = array();
 
			
	function excludeBehavior($behaviors=null) {
		if (!is_array($behaviors)) {
			$behaviors = array($behaviors);
		}
		foreach ($behaviors as $behavior) {
	 		if (isset($this->behaviors[$behavior])) {
				$className = $behavior . 'Behavior';
				if (!loadBehavior($behavior)) {
					// Raise an error
				} else {
					if (ClassRegistry::isKeySet($className)) {
						if (PHP5) {
							$this->_behaviors[$behavior] = ClassRegistry::getObject($className);
						} else {
							$this->_behaviors[$behavior] =& ClassRegistry::getObject($className);
						}
						unset($this->behaviors[$behavior]);
					} else {
						// not registered raise exception
					}
				}
			}
		}
	}

	function includeBehavior($behaviors) {
		if (empty($behaviors)) $behaviors=array_keys($this->_behaviors);
		if (!is_array($behaviors)) {
			$behaviors = array($behaviors);
		}
		foreach ($behaviors as $behavior) {
			if (isset($this->behaviors[$behavior])) continue;
			if (isset($this->_behaviors[$behavior])) {
				$className = $behavior . 'Behavior';
				if (!loadBehavior($behavior)) {
					// Raise an error
				} else {
					if (ClassRegistry::isKeySet($className)) {
						if (PHP5) {
							$this->behaviors[$behavior] = ClassRegistry::getObject($className);
						} else {
							$this->behaviors[$behavior] =& ClassRegistry::getObject($className);
						}
						unset($this->_behaviors[$behavior]);
					} else {
						// not registered raise exception
					}
				}
			}	
		}
	}
}
?>