JavaScript and Groovy share a lot of syntax elements above what Java already provides.
So I could learn the basics easily since I have a general idea of it?
You'd understand some of what you read... but I don't know if you could write it without some pretty serious tutorial surfing.
Yea, true. Again, this is only java-script so I wouldn't get so far.

This has gotten off-topic, but i dont care.
Tutorials on Javascript:
http://w3schools.com/ <-- you will find the javascript link easily. but before you learn javascript, they say you need to know HTML and CSS.
Tutorials on Groovy:
http://groovy.codehaus.org/Documentationfirst you need to download groovy and install it properly. if you need help on installation you can ask for help from me if you run on windows Vista/7 xD