preview depending on contents of drop down box

[Desbrina]

For part of my website, i list the urls of some images in a drop down box. I would like users to have the ability to preview the image by clicking a button, instead of having to write out the code for every image they wish to view.

So when you click the Preview button It opens the URL in a new window

I don't know what programming language would be best suited for this job.

The button i want for preview is just a normal Input Button