var navi01_on=new Image();
navi01_on.src="../img/interface/btn_navi01_a.gif";
var navi01_off=new Image();
navi01_off.src="../img/interface/btn_navi01.gif";
var navi02_on=new Image();
navi02_on.src="../img/interface/btn_navi02_a.gif";
var navi02_off=new Image();
navi02_off.src="../img/interface/btn_navi02.gif";
var navi03_on=new Image();
navi03_on.src="../img/interface/btn_navi03_a.gif";
var navi03_off=new Image();
navi03_off.src="../img/interface/btn_navi03.gif";
var navi04_on=new Image();
navi04_on.src="../img/interface/btn_navi04_a.gif";
var navi04_off=new Image();
navi04_off.src="../img/interface/btn_navi04.gif";

var activities01_on=new Image();
activities01_on.src="../img/interface/btn_activities01_a.gif";
var activities01_off=new Image();
activities01_off.src="../img/interface/btn_activities01.gif";
var activities02_on=new Image();
activities02_on.src="../img/interface/btn_activities02_a.gif";
var activities02_off=new Image();
activities02_off.src="../img/interface/btn_activities02.gif";
var activities03_on=new Image();
activities03_on.src="../img/interface/btn_activities03_a.gif";
var activities03_off=new Image();
activities03_off.src="../img/interface/btn_activities03.gif";
var activities04_on=new Image();
activities04_on.src="../img/interface/btn_activities04_a.gif";
var activities04_off=new Image();
activities04_off.src="../img/interface/btn_activities04.gif";
var activities05_on=new Image();
activities05_on.src="../img/interface/btn_activities05_a.gif";
var activities05_off=new Image();
activities05_off.src="../img/interface/btn_activities05.gif";

var information01_on=new Image();
information01_on.src="../img/interface/btn_information01_a.gif";
var information01_off=new Image();
information01_off.src="../img/interface/btn_information01.gif";
var information02_on=new Image();
information02_on.src="../img/interface/btn_information02_a.gif";
var information02_off=new Image();
information02_off.src="../img/interface/btn_information02.gif";
var information03_on=new Image();
information03_on.src="../img/interface/btn_information03_a.gif";
var information03_off=new Image();
information03_off.src="../img/interface/btn_information03.gif";

var utilities01_on=new Image();
utilities01_on.src="../img/interface/btn_utilities01_a.gif";
var utilities01_off=new Image();
utilities01_off.src="../img/interface/btn_utilities01.gif";
var utilities02_on=new Image();
utilities02_on.src="../img/interface/btn_utilities02_a.gif";
var utilities02_off=new Image();
utilities02_off.src="../img/interface/btn_utilities02.gif";

var about01_on=new Image();
about01_on.src="../img/interface/btn_about01_a.gif";
var about01_off=new Image();
about01_off.src="../img/interface/btn_about01.gif";
var about02_on=new Image();
about02_on.src="../img/interface/btn_about02_a.gif";
var about02_off=new Image();
about02_off.src="../img/interface/btn_about02.gif";
var about03_on=new Image();
about03_on.src="../img/interface/btn_about03_a.gif";
var about03_off=new Image();
about03_off.src="../img/interface/btn_about03.gif";