code: function pongRss_UpdateData( divId, paramsObj ) {
    log( "PongRss", "pongRss_UpdateData ");
    
    var pmd = moduleConfig[ divId ] 
    if ( pmd.rssURLs ) {
      rssData[divId] = []
  
      for ( var i=0; i < pmd.rssURLs.length; i++  ) {
        log( "PongRss", pmd.rssURLs[i].url ) 
        rssCounter[divId]++
  
        $.ajax({
              type: 'GET',
              url: pmd.rssURLs[i].url,
              crossDomain: true,
              crossOrigin: true,
              cache: false,
              success: 
                function( rssXML  ) {
                  if( $.trim( rssXML ) == "false" ) {
                    alert("Fail to recived data");
                  }
                  else {
                    pongRss_print( divId, rssXML )
                  }  
                }
        }).always( 
          function() {
            rssCounter[divId]--
            log( "PongRss", "rssCounter[divId]="+rssCounter[divId])
            if ( rssCounter[divId] == 0 ) {
              pongRss_rssToHTML( divId ) 
            }
          }
        )
      }    
    }
    
    log( "PongRss", "pongRss_UpdateData end.");
  }
docs: update data call back hook