var speed = 1;
function init() {
    var el = document.getElementById("marquee_replacement");
    el.style.overflow = 'hidden';
    scrollFromBottom();
}

var go = 0;
var timeout = '';
function scrollFromBottom() {
    clearTimeout(timeout);
    var el = document.getElementById("marquee_replacement");
    if (el.scrollTop >= el.scrollHeight - 180) {
        el.scrollTop = 0;
    };
    el.scrollTop = el.scrollTop + speed;
    if (go == 0) {
        timeout = setTimeout("scrollFromBottom()", 50);
    };
}

function stop() {
    go = 1;
}

function startit() {
    go = 0;
    scrollFromBottom();
}