var s = 0;
var o = 55;

function news() {
    s = s + 1;
    if (s == 21) s = 1;

    for (i = 1; i <= 20; i++) {

        if (s == i) {
            document.getElementById(i.toString()).style.display = 'block';

            setOpacity(i.toString());

        }
        else
            document.getElementById(i.toString()).style.display = 'none';

    }

    t = setTimeout("news()", 3000);
}

function setOpacity(divtag) {

    if (o != 0) {
        o = o - 1;
        var value = o;
        document.getElementById(divtag).style.opacity = value / 10;
        document.getElementById(divtag).style.filter = 'alpha(opacity=' + value * 10 + ')';
        to = setTimeout("setOpacity(" + divtag + ")", 50);
    }
    else {
        o = 55;
    }

}