load video from external js file not work

g... — Mar 11, 2017 10:03PM EST

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I'm trying to load file from external js file but it didn't work and also it didn't give me error
in my page I have this code:

<div class='content' id='mediaplayer'>Loading ...</div>
<script src='sidebar/radio/jwplayer/jwplayer.js'></script>
<script>
var player = jwplayer("mediaplayer");
player.setup({
skin: "sidebar/radio/jwplayer/skins/six.xml", width: "100%", height: 106, wmode: 'transparent',
file: doc.getElementById("playlist").value, autostart: true,
events: {
onError: function() {
player.remove();
doc.getElementById("mediaplayer").innerHTML = "<mark class='error'>There was error</mark>";
}
}
});
</script>

and in js file I have this function:

function load_media(rtmp) {
player.load([{ file: rtmp }]);
player.play();
}

it work if I use this function:

function load_media(rtmp) {
var player = jwplayer("mediaplayer");
player.setup({
skin: "sidebar/radio/jwplayer/skins/six.xml", width: "100%", height: 106, wmode: 'transparent',
file: doc.getElementById("playlist").value, autostart: true,
events: {
onError: function() {
player.remove();
doc.getElementById("mediaplayer").innerHTML = "<mark class='error'>There was error</mark>";
}
}
});
}

another question I load the url's using: file: doc.getElementById("playlist").value
but I found one of url's must loaded using: playlist: doc.getElementById("playlist").value
how can I switch between file: and playlist: in my function.