var videoEmbed = {
    invoke: function(){

        $('body').html(function(i, html) {
            return videoEmbed.convertVideo(html);
        });

    },
    convertVideo: function(html){
        var pattern1 = /(?:http?s?:\/\/)?(?:www\.)?(?:vimeo\.com)\/?(.+)/g;
        var pattern2 = /(?:http?s?:\/\/)?(?:www\.)?(?:youtube\.com|youtu\.be)\/(?:watch\?v=)?(.+)/g;

        if(pattern1.test(html)){
            console.log("html", html);

           var replacement = '<iframe width="420" height="345" src="//player.vimeo.com/video/$1" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>';

           var html = html.replace(pattern1, replacement);
        }


        if(pattern2.test(html)){
              console.log("html", html);

           var replacement = '<iframe width="420" height="345" src="http://www.youtube.com/embed/$1" frameborder="0" allowfullscreen></iframe>';

            var html = html.replace(pattern2, replacement);
        } 


        return html;
    }
}






setTimeout(function(){
    videoEmbed.invoke();
},3000);