Javascript: Create thumbnail image of YouTube video


function getVideoThumbnail(videourl, imagesize) 
{
    if(videourl === null){
        return "";
    }
    imagesize = (imagesize === null) ? "big" : imagesize;
    var videoid;
    var thumbail;
    thumbail = videourl.match("[\\?&]v=([^&#]*)");
    videoid = ( thumbail === null ) ? videourl : thumbail[1];
    if(imagesize == "small"){
        return "http://img.youtube.com/vi/"+videoid+"/2.jpg"; 
    } else {
        return "http://img.youtube.com/vi/"+videoid+"/0.jpg"; 
    }
}

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Javascript: Create thumbnail image of YouTube video

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