Hashrate in the tab, that's a good one.
Regarding the auto-refresh: I'm not much of a web developer and I don't know how to just update fields, only the inelegant whole page refresh. Messy, clunky, awkward, resource hungry, inefficient whole page refresh.
If you want to do it yourself you can add:
just below:
of index.php
I'll look into putting the total hashrate in the title.
A possibly approach for ajaxiness.
1. Make an emitter php. Have it output raw, mutable data possibly in JSON.
2. Include JQuery. Have JQuery do the ajaxy stuff (so simple. I want to have JQuery's baby.).
3. Javascript in the presentation pages to initiate 2 on a timer.