public function addPropertyValues($property,$values){
		if(\is_array($values)===false){
			$values=\array_fill(0, $this->count(),$values);
		}
		foreach ($values as $i=>$value){
			if(isset($this->content[$i])){
				$this->content[$i++]->addToProperty($property,$value);
			}
			else{
				return $this;
			}
		}
		return $this;
	}