// JScript File
objImage = new Image();

function download(img_src){
// preload the image file
objImage.src=images[img_src];
}

function displaynext(nshift){
present_slide=present_slide + nshift;

if(images.length > present_slide && present_slide >= 0){
document.images['im'].src = images[present_slide];

var next_slide=present_slide + 1;
download(next_slide); // Download the next image
}

if(present_slide+1 >= images.length-1 ){
//document.f1.Next.style.visibility = "hidden";
present_slide=images.length-1;present_slide=-1;
}else{document.f1.Next.style.visibility = "visible";}

if(present_slide<0 ){
//document.f1.Prev.style.visibility = "hidden";
present_slide=-1;
}else{
document.f1.Prev.style.visibility = "visible";
}
}