ProgressBar - Changing the value

ProgressBar - Changing the value


I can initialize progressbar, but when I try to change the value it
doesn't work. The progressbar stays at the same stage (rougly 0.5% of
it is filled in).
I'm using 1.7.2.
Initializing works:
$("div#progressbar").progressbar({ value: 0});
I've tried this to update the value and it doesn't work:
$("div#progressbar").progressbar({'value': iPercent});
I tried this and it gives an error
$("div#progressbar").progressbar({'value', iPercent});
You can see it in action:
http://www.energyjustice.net/map-test/coalproposed.php
Any ideas?