Haly

Hi, Im a complete newbie on the HTML. I got an existing photography website. Now i'm trying to change some stuff in it. On the page I got a column of thumbnails on the left and on the right I got the picture enlarged which is a fixed picture which will change when you hover over the thumbnails. Now I would like to have 2 arrows (visible or not) in the enlarge picture (this can be horizontal of vertical) where you can click on. And on click it should show the next or previous picture from the thumbnail list. Now I found some coding for this but when I add the existing coding it will give me an error. I added it just after the </script>. Can someone please help me on this ? Not sure what I did wrong or maybe you have a better suggestion to achieve what i want. Please find attached my existing coding and the new coding I want to add. Many thanks in advance. Haly existingcoding.pdf New Code.pdf