在鼠标悬停时播放音频文件(并在鼠标悬停时停止播放)

<audio id="mysound" src="mysound.wav"></audio>
<button onmouseover="document.getElementById('mysound').play()" onmouseout="document.getElementById('mysound').pause()">Hover me!</button>

http://www.schillmania.com/projects/soundmanager2/
提供HTML5+传统支持

<script type="text/javascript">
    (function($) {
        $(function(){
                $("a.play").each(function() {
                  $(this).mouseover(function(){ 
                       var mp3file = $(this).attr('href');
                       // asign this mp3file to the player and play it
                  }).mouseout(function() { 
                       // tell the mp3 player to stop
                  });
                });
        });
    })(jQuery);
</script>