3791 	function _fnDetectHeader ( aLayout, nThead )  argument
3805 		aLayout.splice( 0, aLayout.length );
3810 			aLayout.push( [] );
3834 					iColShifted = fnShiftCol( aLayout, i, iColumn );
3844 							aLayout[i+k][iColShifted+l] = {  variable
3848 							aLayout[i+k].nTr = nTr;
3866 	function _fnGetUniqueThs ( oSettings, nHeader, aLayout )  argument
3869 		if ( !aLayout )
3871 			aLayout = oSettings.aoHeader;
3874 				aLayout = [];
3875 				_fnDetectHeader( aLayout, nHeader );
3879 		for ( var i=0, iLen=aLayout.length ; i<iLen ; i++ )
3881 			for ( var j=0, jLen=aLayout[i].length ; j<jLen ; j++ )
3883 				if ( aLayout[i][j].unique &&
3886 					aReturn[j] = aLayout[i][j].cell;