Internship as a web developer?

[kiredeel]

I currently have an offer to intern as a web developer at a growing medical company during the summer. I'm a Network Technologies student and to be quite frank, I don't think I have any real skills to do the job of a web developer. I have taken multiple intro java courses and few networking classes along with a computer architecture class, but I don't have any experience in IT. Although I've done well in my degree for the first year(3.6 GPA), I feel ill-prepared to be a web developer at this point. Am I going in over my head? What kind of duties will I be doing at this kind of internship as a web developer? Any useful information would be much appreciated!