/// <summary>
      /// Returns the number of total published articles for the specified category
      /// </summary>
      public static int GetArticleCount(bool publishedOnly, int categoryID)
      {
         if (!publishedOnly)
            return GetArticleCount(categoryID);

         if (categoryID <= 0)
            return GetArticleCount(publishedOnly);

         int articleCount = 0;
         string key = "Articles_ArticleCount_" + publishedOnly.ToString() + "_" + categoryID.ToString();

         if (BaseArticle.Settings.EnableCaching && BizObject.Cache[key] != null)
         {
            articleCount = (int)BizObject.Cache[key];
         }
         else
         {
            articleCount = SiteProvider.Articles.GetPublishedArticleCount(categoryID, DateTime.Now);
            BaseArticle.CacheData(key, articleCount);
         }
         return articleCount; 
      }