data = new Array("../../images/2nd_menu01.gif","../../images/2nd_menu02.gif","../../images/2nd_menu03.gif","../../images/2nd_menu04.gif","../../images/2nd_menu05.gif","../../images/2nd_menu06.gif","./images/topmenu01.gif","./images/topmenu02.gif","./images/topmenu03.gif","./images/topmenu04.gif","./images/topmenu05.gif");
data2 = new Array("../../images/2nd_menu01_o.gif","../../images/2nd_menu02_o.gif","../../images/2nd_menu03_o.gif","../../images/2nd_menu04_o.gif","../../images/2nd_menu05_o.gif","../../images/2nd_menu06_o.gif","./images/topmenu01_o.gif","./images/topmenu02_o.gif","./images/topmenu03_o.gif","./images/topmenu04_o.gif","./images/topmenu05_o.gif");

over = new Array();
for(i=0 ; i<data2.length ; i++){
over[i] = new Image();
over[i].src = data2[i];
}

function overImg(num){
document.images["menu"+num].src = over[num].src;
}

function outImg(num){
document.images["menu"+num].src = data[num];
}