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Editorial Team
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Asked: 2026-05-11T16:45:20+00:00

I cannot seem to get this to work. Any thoughts? <html xmlns=http://www.w3.org/1999/xhtml> <head> <meta

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I cannot seem to get this to work. Any thoughts?

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Select Video Test</title>
<script type="text/javascript">
    function selectVideo(){
        var urlString = "http://www.mycookingsite.com/";
        var selectedVideo = this.options[this.selectedIndex];
        if (selectedVideo.value != "nothing"){
            window.location = urlString + selectedVideo.value;
        }
    }
</script>
</head>

<body>

<form>
    <select onchange="selectVideo()">
    <option value="nothing">Select video from this list</option>
    <option value="how-to-grill-burgers">How to Grill Burgers</option>
       <option value="how-to-hard-boil-eggs">How to Make Hard-Boiled Eggs</option>
    </select>
</form>
</body>
</html>
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1 Answer

  1. Editorial Team

    You can only use this when you are in the event code. When you are in the function, this referrs to the window object. Send the reference as a parameter to the function:

    <html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Select Video Test</title>
<script type="text/javascript">
    function selectVideo(obj){
        var urlString = "http://www.mycookingsite.com/";
        var selectedVideo = obj.options[obj.selectedIndex];
        if (selectedVideo.value != "nothing"){
                window.location = urlString + selectedVideo.value;
        }
    }
</script>
</head>

<body>

<form>
    <select onchange="selectVideo(this)">
    <option value="nothing">Select video from this list</option>
    <option value="how-to-grill-burgers">How to Grill Burgers</option>
       <option value="how-to-hard-boil-eggs">How to Make Hard-Boiled Eggs</option>
    </select>
</form>
</body>
</html>
    • 0