Contador de visitas en tiempo real de Foros del Web

this_is_fucking_real_time.js

function fdwRefreshOnline() {
    var variation = Math.floor(fdwOnline.guest * 0.01);
    var randvar = fdwOnline.guest + fdwOnline.registered - Math.floor(Math.random() * variation);
    var element = document.getElementById("totalonline");
    if (element.innerHTML != randvar) {
        YAHOO.util.Dom.setStyle(element, "opacity", 0);
        element.innerHTML = randvar;
        fdwRefreshAnimate();
    }
    setTimeout(fdwRefreshOnline, 5000);
}
function fdwRefreshAnimate() {
    var element = document.getElementById("totalonline");
    var current = Number(YAHOO.util.Dom.getStyle(element, "opacity")) + 0.2;
    YAHOO.util.Dom.setStyle(element, "opacity", current);
    if (current < 1) {
        setTimeout(fdwRefreshAnimate, 100);
    }
}
YAHOO.util.Event.onDOMReady(fdwRefreshOnline);