adom = document.createElement('audio');
pt = adom.canPlayType("audio/ogg; codecs=\"vorbis\"");
pt2 = adom.canPlayType("audio/wav; codecs=\"1\"");
pt3 = adom.canPlayType("audio/mpeg;");
pt4 = adom.canPlayType("audio/x-m4a;audio/aac;");
adom = document.createElement('video')
p1 = adom.canPlayType("video/ogg; codecs=\"theora\"")
p2 = adom.canPlayType("video/mp4; codecs=\"avc1.42E01E\"")
p3 = adom.canPlayType("video/webm; codecs=\"vp8, vorbis\"")
p4 = adom.canPlayType("video/mp4; codecs=\"mp4v.20.8, mp4a.40.2\"")
p5 = adom.canPlayType("video/mp4; codecs=\"mp4v.20.240, mp4a.40.2\"")
p6 = adom.canPlayType("video/x-matroska; codecs=\"theora, vorbis\"")