docs: function(basename, lan)
  	{
  		if (mxClient.languages == null || !this.isLanguageSupported(lan))
  		{
  			var dash = lan.indexOf('-');
  			
  			if (dash > 0)
  			{
  				lan = lan.substring(0, dash);
  			}
  		}
  
  		if (mxResources.loadSpecialBundle && mxResources.isLanguageSupported(lan) && lan != mxClient.defaultLanguage)
  		{
  			return basename + '_' + lan + mxResources.extension;
  		}
  		else
  		{
  			return null;
  		}
  	}