Adding a bouncing ball effect to an an existing webpage/application

I want to have a bouncing ball effect in my project. It should display a number every time the ball bounces. This number is taken from a list that is generated randomly at the time of execution. For example: If my list of numbers are from 1 to 20 then, first time ball should bounce displaying 1 present on the ball. next bounce display should display 2 and so on till it displays 20. The list of 20 numbers are generated randomly from my application and the application is developed in .net with help of javascript, jQuery and CSS.