<script type="text/javascript">
var nextUrlArticle = null;

$(document).ready(function() {
    $.get("{{ path('next_video_url', { 'id' : article.id })}}", function(result) {
        nextUrlArticle = result.url;
    });

    function getNextVideo(ext) {
        if (nextUrlArticle) {
            window.location.href = nextUrlArticle;
        }
    }
});
</script>

$(document).ready(function() {
    $.get("{{ path('next_video_url', { 'id' : article.id })}}", function(result) {
        nextUrlArticle = result.url;
        getNextVideo(); // call function after update
    });

    function getNextVideo() {
        if (nextUrlArticle) {
            window.location.href = nextUrlArticle;
        }
    }
});

nextUrlArticle = {{ nexturl }} //django syntax to pass context vars to template
function getNextVideo() {
    if (nextUrlArticle) {
        window.location.href = nextUrlArticle;
    }
 }