How to play sound using javascript

Which is the best way to play sound using javascript in a controlled manner ?
I need a solution which work across all browsers.

This is for my bingo game page which is fully based on ajax. :)

Thanks .

A question which is asked many times.

Have you used the search feature of this forum, or Googled?

For example, http://www.codingforums.com/showthread.php?t=191000