[hobbit] graphing multiple hosts together

I have a page for CPU usage of my linux servers. Its a simple html page with multiple linies like this one

<IMG SRC="/hobbit-cgi/hobbitgraph.sh?host=atlantic1&service=la&graph=hourly&action=view">

James H Thompson wrote:

I'd like to have a page or graph where I could compare the graphs from several hosts. In particular I'd like to compare the DNS lookup performance graphs from several differnent hosts. So how would I get either:

Graphs for a given service from multiple hosts to appear on one page?

of Get the service from multiple hosts to appear on one graph?

Thanks.