function ChangeROvImg(index, obj){
	obj.src = img[index].src;
}

var img = new Array();
img["menu01_u"] = new Image();
img["menu01_d"] = new Image();
img["menu01_u"].src = "./img/menu01_u.gif";
img["menu01_d"].src = "./img/menu01_d.gif";
img["menu02_u"] = new Image();
img["menu02_d"] = new Image();
img["menu02_u"].src = "./img/menu02_u.gif";
img["menu02_d"].src = "./img/menu02_d.gif";
img["menu03_u"] = new Image();
img["menu03_d"] = new Image();
img["menu03_u"].src = "./img/menu03_u.gif";
img["menu03_d"].src = "./img/menu03_d.gif";
img["menu04_u"] = new Image();
img["menu04_d"] = new Image();
img["menu04_u"].src = "./img/menu04_u.gif";
img["menu04_d"].src = "./img/menu04_d.gif";
img["menu05_u"] = new Image();
img["menu05_d"] = new Image();
img["menu05_u"].src = "./img/menu05_u.gif";
img["menu05_d"].src = "./img/menu05_d.gif";
img["menu06_u"] = new Image();
img["menu06_d"] = new Image();
img["menu06_u"].src = "./img/menu06_u.gif";
img["menu06_d"].src = "./img/menu06_d.gif";