refresh page w/ iframe

refresh.js

(function(win, doc, body){

    var iCounter = 0, sUrl = doc.location.href, sTitle = doc.title || sUrl, 
        iMinutes = parseFloat(prompt("Seconds till refresh", "60"),10) || 60;
    
    doc.head.innerHTML = body.innerHTML = '';
    body.style.overflow = 'hidden';
    
    var iframe = win.iframe = doc.createElement("iframe");
    iframe.src = doc.location.href;
    iframe.setAttribute('style',
        'position:absolute;top:0;left:0;width:100%;height:100%;border:0'
    );
    body.appendChild(iframe);

    iframe.onLoad = function() {
        iCounter++;
        doc.title = iCounter + ': ' + sTitle;
    };
    iframe.cycle = function() {
        iframe.setAttribute('src', sUrl);
        iframe.setAttribute('onLoad', 'iframe.onLoad()');
    };
    iframe.cycle();

    setInterval(iframe.cycle, iMinutes*1000);

}(window, document, document.body));

Big, hopefully obvious caveat: the page must not disallow iFrames.