Resizing an image on click

Hi All

I have been searching for an answer but I can't find - probably because I am asking the wrong question!

Specifically I have a large map of the South West of England with some details on it. At it's largest the map doesn't make sense and is too big. But if I hover over map it brings up detail and is then clickable to take you through to further content. However I would also like to be able to provide some buttons on the side to enable increasing the map size. However, I still need to be able to move the whole map within the frame by click and move using a mouse.

Div Resizing Help

Hi all,

I am currently working on this page at http://www.executivetravellink.com/cruise-deals/

I'm just finally starting to learn divs after going old school with tables for many years. This is probably a very simple question, but does anyone know to re-size the width of each div to say be only be about half of the size and only be in the vertical center third of the page? That way I can create promo images to be shown on the right third of the page.

I am assuming that I would have to go into the CSS, which was created by someone else. The code for the div titled "box" is:

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