- (void)scrollViewDidScroll:(UIScrollView *)scrollView;
{
CGFloat y ;
if (scrollView.contentOffset.y < 0) {
y = scrollView.contentOffset.y;
self.headerView.bgImageView.frame = CGRectMake(self.tableViewHeaderView.frame.origin.x, y - 1, 320, ORIGIN_HEIGHT - y);
}
}