yeah you said that in your last post lol^^

I mean it would be really easy. A php file, that get the content of this xml file. Then compares the 4 values, get the one that needs help the most and opens the right site then( in an frame or so...).
And if they are all 0/100 it vitis the site to get more inhabitants :]

And you can let that site be called with help of crownjobs