date formatting with suffix

suffixDate.mm

-(NSString *)StringFromDate:(NSDate *)DateLocal{
    
    NSDateFormatter *prefixDateFormatter = [[[NSDateFormatter alloc] init] autorelease];
    [prefixDateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
    [prefixDateFormatter setDateFormat:@"MMMM d., yyyy"];//June 13th, 2013
    NSString * prefixDateString = [prefixDateFormatter stringFromDate:DateLocal];
    NSDateFormatter *monthDayFormatter = [[[NSDateFormatter alloc] init] autorelease];
    [monthDayFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
    [monthDayFormatter setDateFormat:@"d"];         
    int date_day = [[monthDayFormatter stringFromDate:DateLocal] intValue];      
    NSString *suffix_string = @"|st|nd|rd|th|th|th|th|th|th|th|th|th|th|th|th|th|th|th|th|th|st|nd|rd|th|th|th|th|th|th|th|st";
    NSArray *suffixes = [suffix_string componentsSeparatedByString: @"|"];
    NSString *suffix = [suffixes objectAtIndex:date_day];   
    
    prefixDateString = [prefixDateString stringByReplacingOccurrencesOfString:@"." withString:suffix];
    NSString *dateString =prefixDateString;       
    //  NSLog(@"%@", dateString);
    return dateString;
}