Find number of element in document

1

edit: found answer to previous problem

have a new question:

i need to be able to target the h4’s in a specific div, rather than just the body

what i have now:


var directChangerElements = document.getElementsByTagName("h4");

i need something like this (this isnt working):


var directChangerElements = document.getElementsbyClass('navigation').getElementsByTagName("h4");