Basically, I want to have multiple divs on a page like below

```
<div id="count">10</div>
<div id="count">20</div>

```

And have a something run where all it does is find any div with the id "count" and just add whatever number is in there to itself every second and display the number.

So for the first div would display 10 to start, then the next second change to 20, then 30, then 40 and on and on forever and for the second div it would display 20 to start then show 40, then 60, then 80 and on and on forever as well. 

Thanks in advance! :D