HpbImgPreload('_HPB_ROLLOVER1', 'image/bt_01_off.gif', 'image/bt_01_on.gif');
HpbImgPreload('_HPB_ROLLOVER2', 'image/bt_02_off.gif', 'image/bt_02_on.gif');
HpbImgPreload('_HPB_ROLLOVER3', 'image/bt_03_off.gif', 'image/bt_03_on.gif');
HpbImgPreload('_HPB_ROLLOVER4', 'image/bt_04_off.gif', 'image/bt_04_on.gif');
HpbImgPreload('_HPB_ROLLOVER5', 'image/bt_05_off.gif', 'image/bt_05_on.gif');
HpbImgPreload('_HPB_ROLLOVER6', 'image/bt_07_off.gif', 'image/bt_07_on.gif');
HpbImgPreload('_HPB_ROLLOVER7', 'image/bt0_contact_off.gif', 'image/bt0_contact_on.gif');
HpbImgPreload('_HPB_ROLLOVER8', 'image/bt0_sitemap_off.gif', 'image/bt0_sitemap_on.gif');