How to create a javascript function to create array values from a gridview?

Question

hello friends,,..

I am using code like this..

http://dojocampus.org/explorer/#Dojox_Charting_2D_Simple%20Pie%20Chart

I need to update the pie chart by an On Click event on gridview column.

I am showing four columns in my pie chart. That is, I have four columns in a gridivew I need to pass to update the pie chart with the On Click event.

I need to create javascript function to create array values to pass pie chart. Please can anybody help me to do this?

thanks