Can anyone tell me what the better script language is for a website and what the differences are between them. I'm planning to create my own website but I'm COMPLETELY new to webdesign.
When it comes to scripting languages Perl is usually the way to go. It's really good for manipulating strings so dynamic creation of web pages is easy. It is widely used so it's easy to find modules and support for it. There isn't much you can't do with Perl.

Check out some Perl books here.

The only downside to Perl is its performance. Since it is an interpretted scripting langauge, its programs don't run as fast as those written in a compilable language. If performance is your primary concern use C to write your scripts.

Useful C reference here.