Line chart : Curve type

[adel kraiem]

Hi All,
I have an url for my google chart
http://chart.apis.google.com/chart?&cht=lc&chs=250x100&chtt=Prices&chxt=x&chd=t:2000,1000,2500,500,300,1&chds=0,6000&chxl=0

I want to add a parameter to get it on curve format ? Which format
should be used please ?
Thx to all.

[asgallant]

That is a question for the Image Charts forum: https://groups.google.com/forum/?fromgroups#!forum/google-chart-api