Chart problem

[Meghna ks]

Hi
I've designed a line chart using the swing component JChart.
1.Now, when the mouse is moved over the chart, I need to capture the X & Y Values & display it on a label. How do I do this ?!!
2. How do I set the X & Y labels for the chart ?!! something like a rowheader in a table(X axis) & column header(X axis)
Regards
Meghna