Javascript library for clickable bar chart? -

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i need javascript charting tool build bar chart allows me click on chart bar , chart (in popup or below first chart). need bar chart fires event giving me kind of id of column has been clicked.

dettails

the data first chart should loaded ajax when page loads , data second chart should loaded when click on 1 of columns.

an example: graph 1 bar march , 1 bar april, when click on march bar second graph (below or in pop up) 2 bars: 1 12/03/2011 , other 23/03/2011.

total expenses: march 1200 april 300

total expenses march: 12/03/2011 1000 23/03/2011 200

total expenses april: 16/04/2011 10 21/04/2011 290

yet option, if using jquery: flot.

graph types: flot graph type example

interaction: flot interaction example

click images see actual demo.


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