Nice tutorial about How to Make a Digital Clock with jQuery and CSS3. Soon functionality for setting alarms and playing them back with HTML5 audio ll be add.
It uses native <audio> where available and an invisible flash player to emulate <audio> for other browsers. It provides a consistent html player UI to all browsers which can be styled used standard css.
OIPlayer 'attaches' itself to all video and/or audio tags it encounters. Besides the general configuration of the plugin itself, it uses for each individual tag the attributes the respective tag has like poster, width, controls, autoplay etc. Easy implementation