- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self.tableView cellForRowAtIndexPath:indexPath].textLabel.font = [UIFont fontWithName:@"Arial-MT" size:18];
}

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{

    UITableViewCell *cellForRowToBeSelected = [tableView cellForRowAtIndexPath:indexPath];

    if (cellForRowToBeSelected.selected)
    {
        [self.tableView cellForRowAtIndexPath:indexPath].textLabel.font = [UIFont systemFontOfSize:[UIFont systemFontSize]];
    }

    return indexPath;
}