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<script>
var embedder;
function receiveMessage(event) {
embedder = event.source;
if (event.data !== 'stop') {
event.source.postMessage('foobar', '*');
} else {
if (event.data !== '') {
event.source.postMessage('stop_ack ' + window.name, '*');
}
}
}
window.addEventListener('message', receiveMessage, false);
function CreateChildFrame(src) {
var ifrm = document.createElement("IFRAME");
ifrm.style.width = "640px";
ifrm.style.height = "480px";
ifrm.src = src;
ifrm.name = 'iframe';
document.body.appendChild(ifrm);
embedder.postMessage('ready', '*');
}
</script>
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