graphviz embedded url

[dadada]

I'm trying to figure out how to generate a graph with hyperlinks you can click to access more detailed information on each node / edge in the graph. I found that graphviz has this ability using the URL node property. Using my test file...\[code\]graph G { node [label="\N"]; graph [bb="0,0,218,108"]; king [pos="31,90", width="0.86", height="0.50"]; lord [pos="31,18", width="0.81", height="0.50"]; "boot-master" ; king -- lord [pos="31,72 31,61 31,47 31,36"];}\[/code\]... I was able to generate a cmapx file that seems to contain some useful info:\[code\]<map id="G" name="G"><area shape="poly" href="http://stackoverflow.com/questions/15837283/google.com" title="boot-master" alt="" coords="297,29 292,22 279,15 258,10 233,7 204,5 175,7 150,10 129,15 116,22 111,29 116,37 129,43 150,49 175,52 204,53 233,52 258,49 279,43 292,37"/></map>\[/code\]Here was the command I used to generate this:\[code\]dot -Tcmapx example1_graph.dot -o test.cmapx\[/code\]However I'm not sure how to use this file? The documentation for graphviz also mentions the ps2 format should work for URL links but I didn't have any luck.