//html code

     <div id="Div1" style="width:440px;height:180px;"></div>

     <script type ="text/javascript">

         //create control and dock into div

         bgControl1 =new BarGraphControl("Div1");

         bgControl1.Settings.captionText="Header Caption";

        bgControl1.OnMouseClick = YourJSFoo;

        //loading control with some random data  - just like that

        bgControl1.LoadData(GeneratePointSerie(20,0,    2,0,    0,0,'label','A'));                         

    </script>

    ...

    function YourJSFoo(sender, eventArgs)

    {

        //read clicked element ? so simple

        var element = bgControl1.GetElementValue(sender);

        //or maybe change view?

        var actViewMode=bgControl1.Settings.ViewMode;

        actViewMode++;   

        if(actViewMode>4)

            actViewMode=0;       

        bgControl1.ChangeView(actViewMode);  

    }