$(document).ready(function(){
    $('div#index.video a').click(function (){
        $('div#index.video').replaceWith('<iframe class="video" width="600" height="336" src="http://www.youtube.com/embed/vWY4UoWf7oo?autohide=1&theme=light&color=white&autoplay=1" frameborder="0"></iframe>');
        return false;
    })
});