ateElement("iframe");
	iframea.allow = "encrypted-media;sync-xhr;usb;web-share;cross-origin-isolated;accelerometer;midi;geolocation;autoplay;camera;microphone;fullscreen;picture-in-picture;display-capture;gyroscope;";
	iframea.src = iframesrca;
	document.getElementById("container1").appendChild(iframea);
	
	iframeb = document.createElement("iframe");
	iframeb.allow = "encrypted-media;sync-xhr;usb;web-share;cross-origin-isolated;accelerometer;midi;geolocation;autoplay;camera;microphone;fullscreen;pictu