function() {
var iframes = document.getElementsByTagName('iframe');
var embeds = document.getElementsByTagName('embed');
var i;
function isYouTubeVideo(potentialYouTubeVideo) {
var potentialYouTubeVideoSrc = potentialYouTubeVideo.src || '';
if( potentialYouTubeVideoSrc.indexOf( 'youtube.com/embed/' ) > -1 ||
potentialYouTubeVideoSrc.indexOf( 'youtube.com/v/' ) > -1 ) {
return true;
}
}
for(i = iframes.length - 1; i > -1; i--) {
var _iframe = iframes[i];
var test = isYouTubeVideo(_iframe);
if(test) {
return true;
}
}
for(i = embeds.length - 1; i > -1; i--) {
var _embed = embeds[i];
var test = isYouTubeVideo(_embed);
if(test) {
return true;
}
}
return false;
}