Use only Javascript, I haven’t tested it: <html> <head> </head> <body> <div> <object width=”100%” height=”100%” id=”liveTV_api” name=”liveTV_api” data=”http://www.extratv.gr/media/imgs/flowplayer-3.2.15.swf” type=”application/x-shockwave-flash”><param name=”allowfullscreen” value=”true”><param name=”allowscriptaccess” value=”always”><param name=”quality” value=”high”><param name=”bgcolor” value=”#000000″><param name=”flashvars” value=”config={"clip":{"url":"mpegts_256.stream","provider":"rtmp","live":true,"scaling":"fit"},"plugins":{"rtmp":{"url":"http://www.extratv.gr/media/imgs/flowplayer.rtmp-3.2.11.swf","netConnectionUrl":"rtmp://213.16.167.186:1935/live","subscribe":true}},"playerId":"liveTV","playlist":[{"url":"mpegts_256.stream","provider":"rtmp","live":true,"scaling":"fit"}]}”></object> <img id=”adtv” src=”https://stackoverflow.com/questions/26488622/img.png”> </div> <script type=”text/javascript”> function update() { var now = (new Date()).getHours(), start = 12, end = 13; if(now >= start && now <= … Read more