var myImage01 = new Image();
myImage01.src = './img/navi-01-hover.gif';
var myImage02 = new Image();
myImage02.src = './img/navi-02-hover.gif';
var myImage03 = new Image();
myImage03.src = './img/navi-03-hover.gif';
var myImage04 = new Image();
myImage04.src = './img/navi-04-hover.gif';
var myImage05 = new Image();
myImage05.src = './img/navi-05-hover.gif';
var myImage06 = new Image();
myImage06.src = './img/navi-06-hover.gif';