Exacto knife.

One nice thing is that if you find a page with a tool that you need, under certain circumstances, you can save the page for later use. In some cases, if it is going into an educational environment, the advertisements have to go away. That is what was done with this web page.


Before:

After editing the source code:

So there are more uses for knowing html, javascript, and css than for just creating your own web page.  One of many sites to get free code: http://www.free-javascripts.com.