Counter

I'm looking for a counter that will act in a similar manner:
http://www.nationalpriorities.org/
(on the right side at the bottom “Cost of the war in Iraq”)
I have only java script:

<div id="counting">1</div>
<script type="text/javascript">var n=1;
function plusfigure (n){
    document.getElementById("counting").innerHTML=n;
    n++;
    setTimeout("plusfigure ("+n+")",500);
}
plusfigure (n);
</script>

Code (markup):

This script is not resistant to refresh.
Someone could help me?
Ps.
Sorry for my english.

 

I think javascript alone can't do this. You might need to store it to database or something

 

Yes, I know that's impossible in the javascript, needed database. Therefore looking for help in php.