Passing filters from map to chart

Hi All,

I am very new to BO Xcelsius.

I am trying to understand how do we pass filters from selecting a region in Maps into a chart originating from a different table.

For e.g.

http://resources.businessobjects.com/support/cx_present/samples/u.s%20visual%20sales%20model/u.s%20visual%20sales%20model.swf

In the above link: When we click on a region of the map the Pie Chart changes showing that region's data by Customer.

The excel for the chart would be as below

Region Value

Alaska 100

Alabama 400

....

How should the excel data for first Pie chart be to achieve such functionality?

And how to Achieve this passing of values.

Please help. Thanks in advance to all

-Ritesh