docs: function _fnAjaxUpdate( oSettings )
  		{
  			if ( oSettings.bAjaxDataGet )
  			{
  				oSettings.iDraw++;
  				_fnProcessingDisplay( oSettings, true );
  				var iColumns = oSettings.aoColumns.length;
  				var aoData = _fnAjaxParameters( oSettings );
  				_fnServerParams( oSettings, aoData );
  				
  				oSettings.fnServerData.call( oSettings.oInstance, oSettings.sAjaxSource, aoData,
  					function(json) {
  						_fnAjaxUpdateDraw( oSettings, json );
  					}, oSettings );
  				return false;
  			}
  			else
  			{
  				return true;
  			}
  		}