static protected $_propertyHackIdAttributeName='property:id';

/**
* Return the uniqid string for this object.
* SimpleXmlElement extend classes cannot have normal properties.
*
* @return string
*/
protected function getPropertyHackId()
{
$top=parent::xpath('/*');
$top=$top[0];
if (empty($top[self::$_propertyHackIdAttributeName]))
{
$top[self::$_propertyHackIdAttributeName] = uniqid();
}
return (string)$top[self::$_propertyHackIdAttributeName];
}

static protected $_properties=array();

/**
Set a property of a SimpleXMLIterator object.

@param $name The name of the property.
@param $value The variable to attach to this element. If null it is not attached.
@return mixed The variable attached with the specified name.
*/
public function setProperty($name, $value)
{
if (!isset(self::$_properties[$this->getPropertyHackId()]))
{
self::$_properties[$this->getPropertyHackId()] = array();
}
self::$_properties[$this->getPropertyHackId()][$name]=$value;
}

/**
* Get a property of a SimpleXMLIterator object.
*
* @param $name The name of the property.
* @return mixed The variable attached with the specified name.
*/
public function getProperty($name)
{
if (!isset(self::$_properties[$this->getPropertyHackId()][$name]))
{
throw new Ea_Xml_Element_Exception("$name : property dos not exist !");
}
return self::$_properties[$this->getPropertyHackId()][$name];
}