title: GWT Chart library - ability to blow-up components inside the chart
body: <p>I have a specific requirement for my GWT charting library. I need a library that supports a variety of graphs (bar, line, pie) and should have the ability to handle events from inside a chart (like clicking on a bar inside the bar graph - this would allow me to show extra information as a popup when its clicked). </p>
  
  <p>I know that conventional wisdom states that its not possible without using Flash/Flex or a third-party embedded component but I am assuming that there would be a HTML5 charting library that would allow me to do it. I have tried to search but unsuccessfully. Any help would be appreciated. Thanks</p>