var navi_home_on=new Image();
navi_home_on.src="./img/interface/navi_home_a.gif";
var navi_home_off=new Image();
navi_home_off.src="./img/interface/navi_home.gif";

var navi_service_on=new Image();
navi_service_on.src="./img/interface/navi_service_a.gif";
var navi_service_off=new Image();
navi_service_off.src="./img/interface/navi_service.gif";

var navi_consignment_on=new Image();
navi_consignment_on.src="./img/interface/navi_consignment_a.gif";
var navi_consignment_off=new Image();
navi_consignment_off.src="./img/interface/navi_consignment.gif";

var navi_cases_on=new Image();
navi_cases_on.src="./img/interface/navi_cases_a.gif";
var navi_cases_off=new Image();
navi_cases_off.src="./img/interface/navi_cases.gif";

var navi_seminar_on=new Image();
navi_seminar_on.src="./img/interface/navi_seminar_a.gif";
var navi_seminar_off=new Image();
navi_seminar_off.src="./img/interface/navi_seminar.gif";

var navi_contact_on=new Image();
navi_contact_on.src="./img/interface/navi_contact_a.gif";
var navi_contact_off=new Image();
navi_contact_off.src="./img/interface/navi_contact.gif";