docs: function _fnReOrderIndex ( oSettings, sColumns )
  		{
  			var aColumns = sColumns.split(',');
  			var aiReturn = [];
  			
  			for ( var i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
  			{
  				for ( var j=0 ; j<iLen ; j++ )
  				{
  					if ( oSettings.aoColumns[i].sName == aColumns[j] )
  					{
  						aiReturn.push( j );
  						break;
  					}
  				}
  			}
  			
  			return aiReturn;
  		}