rozzo la funzionale:
codice:
<script type="text/javascript">
function refreshIframe() {
    var ifr = document.getElementsByName('Right')[0];
    ifr.src = ifr.src;

    var iifr = document.getElementsByName('iframe_a')[0];
    iifr.src = "http://192.161.1.11/arduino/digital/7/1";
}
</script>