embedding a youtube video problem

i'm making a website in Edge Animate for a class project and am trying to embed a youtube video within it.

here is my code:

var youtubevid = $("<iframe/>");

sym.$("video12").append(youtubevid);

youtubevid.attr('type','text/html');

youtubevid.attr('width','540');

youtubevid.attr('height','315');

youtubevid.attr('src','http://www.youtube.com/embed/_JY4ZV_fumU?rel=0');  // url/Video_Id

youtubevid.attr('frameborder','1');       // 1 | 0

youtubevid.attr('allowfullscreen','0');   // 1 | 0

it's located within my stage, composition ready.

my understanding was first i needed to create a rectangle symbol the size of the video and that's where the video is embedded. on my page I see the video but it appears the symbol is over top

of the video so i can't play it.

Any ideas?

Thanks!