code: function _fnCallbackFire( oSettings, sStore, sTrigger, aArgs )
  		{
  			var aoStore = oSettings[sStore];
  			var aRet =[];
  		
  			for ( var i=aoStore.length-1 ; i>=0 ; i-- )
  			{
  				aRet.push( aoStore[i].fn.apply( oSettings.oInstance, aArgs ) );
  			}
  		
  			if ( sTrigger !== null )
  			{
  				$(oSettings.oInstance).trigger(sTrigger, aArgs);
  			}
  		
  			return aRet;
  		}
docs: Fire callback functions and trigger events. Note that the loop over the callback
  array store is done backwards! Further note that you do not want to fire off triggers
  in time sensitive applications (for example cell creation) as its slow.
  @param {object} oSettings dataTables settings object
  @param {string} sStore Name of the array storeage for the callbacks in oSettings
  @param {string} sTrigger Name of the jQuery custom event to trigger. If null no trigger
  is fired
  @param {array) aArgs Array of arguments to pass to the callback function / trigger
  @memberof DataTable#oApi