How Can I Find or Replicate the Source Code for This Random Poem Generator?

I'm totally new to all this.

I've been playing with this poem generator: http://thinkzone.wlonk.com/PoemGen/PoemGen.htm

What I want to do now is to find or replicate the source code so I can modify it to include a few more lists of words.

At the bottom of the page it says "You can see the source code in PoemGen.htm and PoemGen.js (JavaScript)." Like I said, I'm new to this. I tried downloading JavaScript but I wasn't able to. Even if I was able to, how would I find that source code?

I've tried to figure out on my own how to make my own version but I'm getting nowhere. Can someone please help?

Thank you.