Difficulty in Understanding Slideshow script

Question

I have taken slide show script from net. But There some functions i cannot understand here is script

Answer 1

Ok I figured it out. My code had many errors.

imageItem is a constructor function designed to preload images. It returns the src (location) of the image that it preloads.

However the function get_ImageItemLocation() assumes that imageItem has returned an object.

The whole thing should simplify to:

Play slide show | 
Pause | 
Previous | 
Next  

Well If you want imageArray to be an array of image urls, then the simplest way is: ...

function imageItem(url) {
    var img = new Image();
    img.src = url;
    return url;
}
for(var i=0; i<5; i++){
    imageArray[i] = imageItem(imageDir + i + ".jpg");
}

Note how imageItem is called without new in this case. Hope you will understand it now. Let me know if you have further problem with this code.