var maxht = 500;
var step = 1;
var moveddist = 0;
var targetdist;
var obj_id;
var init_botnbr;

function MovingBanner() {
    var botstr;
    var botnbr;

    obj = document.getElementById(obj_id);
    //alert ('moveddist==' + moveddist + ' targetdist==' + targetdist);
    if(targetdist == 0)
        obj.style.visibility = "hidden";
    else if(moveddist < targetdist) {
        botstr = obj.style.bottom;
        botnbr = parseInt(botstr.replace("px", ""));
        obj.style.bottom = botnbr + step;
        //alert(obj.style.bottom);

        moveddist = moveddist + step;
    }
    else {
        //alert('else');
        obj.style.bottom = init_botnbr;
        moveddist = 0;
    }

    setTimeout('MovingBanner()', 11);
}

function MoveBanner(objid) {
    obj_id = objid;
    obj = document.getElementById(objid)
    var botstr = obj.style.bottom;
    var botnbr = parseInt(botstr.replace("px", ""));

    init_botnbr = botnbr;
    targetdist = parseInt(maxht) - parseInt(botnbr) - 75;
    if(targetdist < 0)
        targetdist = 0;
    //alert ('maxht--' + maxht + ' botnbr--' + botnbr + ' targetdist--' + targetdist);
    MovingBanner();
    //alert ('af');
}