if ( getconfig( "AutoAdjustOrikaeshi" ) == 2 ) {
		#width = windowwidth;
	} else {
		#width = getconfig( "Orikaeshi" );
	}
	disabledraw;
	begingroupundo;
	if ( !selecting ) {
		selectall;
	}
	#i = seltoplineno;
	#end = selendlineno;
	escape;
	while( #i <= #end ) {
		movetolineno 1, #i;
		#margin = #width - linelen2;
		if ( #margin >= 0 ) {
			#j = #margin / 2;
			while( #j > 0 ) {
				insert " ";
				#j = #j - 1;
			}
		} else {
			while( linelen2 > #width ) {
				golineend2;
				backspace;
				if ( !linelen2 > #width ) {
					break;
				}
				golinetop2
				delete;
			}
		}
		#i = #i + 1;
	}
	endgroupundo;
	enabledraw;