GET the content of a div in another page

GET the content of a div in another page

Hello Everybody,
I need to develop a page who will show a grid with Log.
So, I'd like to insert the text "see more..." and below it show a tip from the Questions and Answers page.

The Q&A has a list of itens with a code for each one (ex: ABB0001ERROR) and every DIV has the ID with it.

So, I need to request in my page to get the content of the id #ABB0001ERROR in the page of Q&A to print in my first page.

How can I do That?

Ex:
var divCont = document.getElementById('DivId').innerHTML;

But I need in other page.