Key-Value coding and its scripting capability

id key, value;
   key  	= [[attributes objectAtIndex:j] name];
   value    = [[attributes objectAtIndex:j] stringValue];
   [obj setValue:value forKey:key];

id key, value;
key = [[attributes objectAtIndex:j] name];
value = [NSNumber numberWithInt:[[[attributes objectAtIndex:j] stringValue] intValue]];
[obj setValue:value forKey:key];