How to create StopWatch in Asp.Net

Hello everyone..

I want to display a Stopwatch timer ...using Asp.Net C#...

I reffer many threads and searched in google also...
But cant find proper code or solution..
Most of the solutions i found were very hard to implemnt and some of didnt worked...

I want to create stopwatch like...

00.00
which is HH.MM



In this by clicking on start button in starts the watch from 00.00

and change the text of Button to Stop.
And by click on that again it Stops the watch..
And Then Save that time in database and also display in given TextBox....
by click on Reset it resets the time to 00.00..


I haven't any idea about this
so require some code as suggestion..

how can i do this?