function playMP3(src,auto) {
 var agt=navigator.userAgent.toLowerCase();
 if (agt.indexOf("chrome") != -1 || agt.indexOf("ipad") != -1 || agt.indexOf("iphone") != -1) {
   if (auto == 'true') {
     autoplay = 'autoplay';
   } else {
     autoplay = '';
   }
   document.writeln('<audio controls="controls" ' + autoplay + '><source src=' + src + ' type="audio/mpeg" /></audio>');
 } else {
    document.writeln('<embed src=' + src + ' width=17 height=16 autostart=' + auto + ' loop=false>');
 }
}