Open chart by default using URL parameters

Hi Experts,

We got a requirement which consist in open by default the chart pie using url parameters. We have tried parameter piechart=enable like the next URL:

http://HOST:PORT/sap/bc/bsp/sap/crm_ui_start/default.htm?sap-client=001&sap-language=ES&piechart=enable

But it has not worked. How Can I open the chart using url parameters without clicking on the button?

Best Regards

David Cortes