rem: return decrement( val.substr( 0, val.length - 1 ) ) + COLCHAR[ COLCHAR.length - 1 ]; 
add: return decrement( val.substr( 0, val.length - 1 ) ) + COLCHAR.charAt( COLCHAR.length - 1 ); 
context: function decrement( val ){	var nChar = COLCHAR.indexOf( val[ val.length - 1 ] ) - 1;		if( nChar >= 0 )	{		return val.substr( 0, val.length - 1 ) + COLCHAR[ nChar ];	}	else	{		return decrement( val.substr( 0, val.length - 1 ) ) + COLCHAR[ COLCHAR.length - 1 ];	}}
meta: 1064	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1064/11fd8ffc097eaf7cf0e25e8cbcbc0410b61cf328/grid.js/buggy/lib/sheet/grid.js