MSChart add a title

Hi
I have an MSChart and I printed it at the center of the page.But I need to add a title to this chart.The title is:
From 01/08/2006 to 28/08/2006
Top 10 Keywords

and i want this title to be printed above the chart(which is printed at the center of the page).
How can I do it?
thanks

how u are printing this chart?