var checkBanner = false;
var bannerHeight = 76;
var bannerSpeed = 10;

function bannerOpen() {
    if (!checkBanner) {
        $Y("mbannerdiv").style.display = "block";
        var anim = function () {
            n += 5;
            if (n >= bannerHeight) {
                $Y("mbanner").style.marginTop = "0px";
                window.clearInterval(ta);
            } else {
                $Y("mbanner").style.marginTop = "-" + (bannerHeight - n) + "px";
                $Y("mbannerdiv").style.height = n + "px";
            }
        }, n = 0;
        var ta = window.setInterval(anim, bannerSpeed);
    }
}

function bannerClose() {
    var anim = function () {
        n += 5;
        if (n >= bannerHeight) {
            $Y("mbanner").style.marginTop = "-" + bannerHeight + "px";
            $Y("mbannerdiv").style.display = "none";
            window.clearInterval(ta);
        } else {
            $Y("mbanner").style.marginTop = "-" + n + "px";
            $Y("mbannerdiv").style.height = (bannerHeight - n) + "px";
        }
    }, n = 0;
    var ta = window.setInterval(anim, bannerSpeed);
}

function bannerShow(text) {
    var _html = '<div id="mbannerdiv" class="margin overflow"><div id="mbanner">';
    _html += '<div id="mbanclose" class="mbanclosea" onmouseover="this.className=mbancloseb"';
    _html += 'onmouseout="this.className=mbanclosea" onclick="bannerClose();"></div>';
    _html += text;
    _html += '</div></div>';
    $(document.body).prepend(_html);
    window.setTimeout('bannerOpen()', 500);
}