Introduction - If you have any usage issues, please Google them yourself
document.getElementsBySelector(selector)
- returns an array of element objects from the current document
matching the CSS selector. Selectors can contain element names,
class names and ids and can be nested. For example:
elements = document.getElementsBySelect( div#main p a.external )
Will return an array of all a elements with external in their
class attribute that are contained inside p elements that are
contained inside the div element which has id= main