Is any familiar with xm/swf graphs?

I've created a Line graph that shows the Weekly Score for 12 teams. Sample can be viewed Here

And if you click on each item in the legend it will deactivate that team/line on the graph.

Now, what I'm trying to do is for the chart to load with all all teams/line hidden except for the first team listed. If your familiar with xml/swf graphs, has anyone been able to do that?

I would really like to be able to hide all but one team, and then to include a bar graph of the weekly averages compared to the teams line graph. Does anyone recommend some other good graphing utilities out there?