Parse Xml Using JS Into Html Table?

New to this, worked through the w3c tutorials and am really fascinated by some of the concepts. I'm only familiar with html, css, js (basics), so am trying to keep things as simple as I can for this.

For simplicity I'll use books.xml with a listing of books. Each book has a <title><author><year><price> and <image> element. The images are stored in a folder called "images" a path is listed in the xml document.

Using js and an array I can loop through the xml file and have it extract each node into a table, if I mouseOver a ROW in the table, it displays that listing in a DIV above and I would like it to display the image/thumbnail for that particular listing within another div called thumbnail which is in the same location regardless of which listing you mouseOver.

if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}

[Code]....

So the way this looks is there's a grey div. At the top it says listing, and when the body loads it lists the [0] first entry from the array. To the right of this is a small div called thumbnail that is empty and I would like it to load the relevant image from the path in the <image> tag in the xml file.

Below the listing is a table with 4 columns (title, genre, price, image) and an equal number of rows to the number of listings in the xml file. Under the "image" column it just shows the path to the image.

So how do I tie the empty thumbnail div to the listing so it'll just add the path from the xml <image> tag into a <img src="pathnamefromxmldocument">