It should also be noted, before we begin, that Javascript is extremely
case sensitive so if you're trying to code along with any examples make
sure lowercase is lowercase and uppercase is uppercase. For the most part
Javascript is also a camel-cased language. That is, if you're trying to express more
than one word you will eliminate the spaces, leave the first letter uncapitalized
and capitalize the first letter of each word. Thus "get element by id" becomes "getElementByID".