JS and the DOM

Web pages tended to be pretty dull in the early stages of the internet. Just plain white wallpapers with some text and images at best. Then, websites started getting more and more elaborate, with more and more side-pages to navigate under the same address. But more things need better organisation, and sites were still a bit dull and quite static, making matters worse than they were. So, and for other porpuses, JS and Dom were introduced. The use of a combination of these two allow to make highly demanding and impressive websites, while mantaining the capacity to make a simpler one without much additional learning of other topics outside these, a huge advantage to both sides: the maker an the consumer of that content.