function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;
}
}

function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
}
}
}

var preloadFlag = false;
function preloadImages() {
if (document.images) {
anim_o1 = newImage("images/index_on01.jpg");
anim_o2 = newImage("images/index_on02.jpg");
anim_o3 = newImage("images/index_on03.jpg");
preloadFlag = true;
}
}

function WindowOpen(html_filename,hwnd,width,height){
window.open(html_filename,hwnd,"toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,Width="+width+",Height="+height+"");
}