function preLoad() {
;
}
function changeImage(filename,imageName) {
;
}

var imageDir = "../img/";
var loadList;
var action = "off";

function preLoad() {
loadList = new Array("btn_01.gif","btn_02.gif","btn_03.gif","btn_04.gif","btn_05.gif","btn_01o.gif","btn_02o.gif","btn_03o.gif","btn_04o.gif","btn_05o.gif"
);
onImages = new Array();
for (field in loadList)
{
onImages[field] = new Image();
onImages[field].src = imageDir + loadList[field];
}
action = "on";
}

function changeImage(fileName,imageName)
{
if(action == "on"){
document.images[imageName].src =imageDir + fileName;
}
}