Learning how to create a 'hello world' script is normally the first step in learning any programming language.
It's important because it's simple, and it willbe difficult for you to advance to the more advanced javascript features without mastering the basics.
What we're going to do is very simple, we're simply going to insert the text "Hello World" somewhere in an html document.
First we want to create an empty script tag that we will use to store our javascript code:
