PHP:显示确认对话框

My PHP page has a link to delete one MySQL table datum. I want it to be in such a way that when I click the 'delete' link a confirmation box should appear and it should ask "are you sure, you want to delete?", with two buttons: 'yes' and 'no'. When I click yes, I want to delete the MySQL table's data and when I click no, nothing should happen. My PHP page has a link to delete one MySQL tabl