I am new to web development.
I have built a site from scrathc and have got a bit of JS from various websites.

The website is basic but it does the job and I'm happy with it.

However, I think it is only on IE and firefox, when flicking through pictures, some pictures load up really small (like thumbnail size). When yo refresh the page, it loads up fine.

Please can someone help me? I have tried my best but it's not good enough. I'm struggling to be honest.

Many Thanks in advance.