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preload("ibp1dn","graph/bt_rules_dn.gif");
preload("ibp2","graph/bt_wallp.gif");
preload("ibp2dn","graph/bt_wallp_dn.gif");
preload("ibp3","graph/bt_more.gif");
preload("ibp3dn","graph/bt_more_dn.gif");
preload("ibp4","graph/bt_back.gif");
preload("ibp4dn","graph/bt_back_dn.gif");
preload("ibp5","graph/bt_poznaj.gif");
preload("ibp5dn","graph/bt_poznaj_dn.gif");
preload("ibp6","graph/bt_go.gif");
preload("ibp6dn","graph/bt_go_dn.gif");
preload("ibp7","graph/bt_streets.gif");
preload("ibp7dn","graph/bt_streets_dn.gif");
preload("ibp8","graph/bt_showAll.gif");
preload("ibp8dn","graph/bt_showAll_dn.gif");