if (document.images) {

var menu0on = new Image();
menu0on.src = "image_kyoutuu/menu0_top2.gif";
var menu0off = new Image();
menu0off.src = "image_kyoutuu/menu0_top.gif";

var menu1on = new Image();
menu1on.src = "image_kyoutuu/menu1_talent2.gif";
var menu1off = new Image();
menu1off.src = "image_kyoutuu/menu1_talent.gif";

var menu2on = new Image();
menu2on.src = "image_kyoutuu/menu2_audition2.gif";
var menu2off = new Image();
menu2off.src = "image_kyoutuu/menu2_audition.gif";

var menu3on = new Image();
menu3on.src = "image_kyoutuu/menu3_company2.gif";
var menu3off = new Image();
menu3off.src = "image_kyoutuu/menu3_company.gif";

var menu4on = new Image();
menu4on.src = "image_kyoutuu/menu4_contact2.gif";
var menu4off = new Image();
menu4off.src = "image_kyoutuu/menu4_contact.gif";

var menu0_1on = new Image();
menu0_1on.src = "../image_kyoutuu/menu0_top2.gif";
var menu0_1off = new Image();
menu0_1off.src = "../image_kyoutuu/menu0_top.gif";

var menu1_1on = new Image();
menu1_1on.src = "../image_kyoutuu/menu1_talent2.gif";
var menu1_1off = new Image();
menu1_1off.src = "../image_kyoutuu/menu1_talent.gif";

var menu2_1on = new Image();
menu2_1on.src = "../image_kyoutuu/menu2_audition2.gif";
var menu2_1off = new Image();
menu2_1off.src = "../image_kyoutuu/menu2_audition.gif";

var menu3_1on = new Image();
menu3_1on.src = "../image_kyoutuu/menu3_company2.gif";
var menu3_1off = new Image();
menu3_1off.src = "../image_kyoutuu/menu3_company.gif";

var menu4_1on = new Image();
menu4_1on.src = "../image_kyoutuu/menu4_contact2.gif";
var menu4_1off = new Image();
menu4_1off.src = "../image_kyoutuu/menu4_contact.gif";

}

function On(name) {

if (document.images) {
document.images[name].src = eval(name + 'on.src');
}

}

function Off(name) {

if (document.images) {
document.images[name].src = eval(name + 'off.src');
}

}