t.getElementsByTagName
				&& document.getElementsByTagName("video")
				&& document.getElementsByTagName("video")[0]) {
					// html5 page, check if supported
					var v = document.getElementsByTagName("video")[0];
					if(typeof(v.volume) !== "number") {
						// no
						var player = document.getElementById("watch-player-div")
						player.innerHTML = ""
						var noplayer = document.createElement("div")
						noplayer.id = "watch-noplayer-div"
						var messageParts = [
							"your browser does not app