function openVideo(id) {
    var horizontalPadding = 30;
    var verticalPadding = 30;
    $('<iframe id="externalSite" class="externalSite" src="http://www.praksisintra.dk/showvideo.php?id='+ id +' />').dialog({
        title: 'PraksisIntra hjælpevideo',
        autoOpen: true,
        width: 990,
        height: 680,
        modal: true,
        resizable: false,
        overlay: {
            opacity: 0.5,
            background: "black"
        }
    }).width(960).height(650);
}