New to Java

Hi
I am new to the forum and new to J2EE. I have a JSP page which gets data from a bean which interacts with database to provide this information. The JSP then calls another bean with the data got to populate this data into a Pie Chart. That pie chart bean uses all the values and creates the pie chart and returns as a JPanel. I need to display the panel in the same window as what the JSP is running. Unfortunately I do not know how to do that. I create a JFrame and pass the panel to it it woks. But that means it throws another window other than the window on which the current JSP runs. How do I populate the pie chart in the current windo of JSP

      JFrame myFrame = new JFrame("MYPie");

      upsFrame.addWindowListener(new WindowAdapter()
      {
         public void windowClosing(WindowEvent evt)
         {
         	System.out.println("Window closing . Will Dispose");
         	int ok = 0;
         	int cancel = 2;
         	int anwser = JOptionPane.showConfirmDialog((JFrame) evt.getSource(),
         	"Do you want to close", "information",
         	JOptionPane.OK_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE);
            if (anwser == ok)
         	{
         	   System.out.println("Since given Yes in Joption wil dispose the Frame");
         	   ((JFrame) evt.getSource()).dispose();
           	}
         	else
         	{
         	}
         }
      }
      );
      gridPieBean.setPieChartTitle("GRID ENGINE OVERVIEW");
      gridPieBean.setPieChartSubTitle("GRID ENGINE USAGE");
      gridPieBean.setBGColor("#aaaaaa");
      out.println("Calling to contruct a Pie Chart: ");        
      String myPieItems[] = new String[2]; // allocate storage
	  myPieItems[0] = new String(new Integer(brokerStatsPerf.getNumJobsRunning()).toString() + ",NUMJOBSRUN,ffff00");
	  myPieItems[1] = new String(new Integer(brokerStatsPerf.getNumTasksPending()).toString() + ",NUMJOBSPEN,ffbb00");
      //myPieItems[0] = new String(new Integer(brokerStatsPerf.getNumBusyEngines()).toString() + ",BUSYENGINES,ffbb00");
	  //myPieItems[1] = new String(new Integer(brokerStatsPerf.getNumTotalEngines()).toString() + ",TOTALENGINES,ffff00");
      myPieItems[0] = new String( "80,NUMJOBSRUN,ffff00");
	  myPieItems[1] = new String("20,NUMJOBSPEN,ffbb00");	  	  
      gridPieBean.setPieItems(myPieItems,2);
	  gridPieBean.setPanelHieght(frameHieght-700);
      gridPieBean.setPanelWidth(frameWidth);
      gridPieBean.init();
      myFrame.getContentPane().add("Center", gridPieBean);
      myFrame.resize(frameHieght,frameWidth);
      myFrame.show();
    }
   catch(Exception e)
   {
      System.out.println("Caught exception");
   }

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