JavaScript and querySelector

Question

I have this HTML:

  
Intermediate steps
  → 

        
      

Answer 1

document.querySelector returns the first element within the document thus the error. you probalbly want to try: document.querySelectorAll

var elements = document.querySelectorAll(".staticStep img");

elements[0].src  =.....
elements[1].src  =.....
elements[2].src  =.....

Or you could use jQuery instead.