if( m_hAdjust->value + m_hAdjust->page_size > m_hAdjust->upper )
{
m_hAdjust->value = m_hAdjust->upper - m_hAdjust->page_size;
if( m_hAdjust->value + m_hAdjust->page_size > m_hAdjust->upper )
{
m_hAdjust->value = m_hAdjust->upper - m_hAdjust->page_size;