var aa= new Image();
var ab= new Image();
var ac= new Image();
var ad= new Image();
var ae= new Image();
var af= new Image();

var ag= new Image();
var ah= new Image();
var ai= new Image();
var aj= new Image();


aa.src="images/top_menu_o_01.jpg";
ab.src="images/top_menu_o_02.jpg";
ac.src="images/top_menu_o_03.jpg";
ad.src="images/top_menu_o_04.jpg";
ae.src="images/top_menu_o_05.jpg";
af.src="images/top_menu_o_06.jpg";

ag.src="images/sub_menu_o_01.jpg";
ah.src="images/sub_menu_o_01.jpg";
ai.src="images/sub_menu_o_01.jpg";
aj.src="images/sub_menu_o_01.jpg";