What is the best way to show animated statistics on a web application?

I want to develop a nice looking web application which contains a little UI, communicate with a SQL Database and is able to show animated statistics. (Something like that: http://ift.tt/mca6wP).

Till now, I just developed webpages using HTML, CSS, JavaScript, PHP and have some experiences in C# and I do not know exactly how to get this fancy looking stuff on my application.

Is there maybe something existing which I can use/buy or maybe i should take into consideration further options than javascript...?

I appreciate every hint.