public void setAttribute(String key, String value)
	{
		if (this.attris.containsKey(key))
			this.attris.remove(key);
		this.attris.put(key, value);
		
		if (key.equals("name"))
		{
			this.name = value;
			if (this.parent != null)
				this.path = this.parent.path + ":" + this.name;
			else
				this.path = this.name;
		}
	}