var intervalId = null;

function slideAd(id, nStayTime, sState, nMaxHth, nMinHth) {
    this.stayTime = nStayTime * 1000 || 10;
    this.maxHeigth = nMaxHth || 300;
    this.minHeigth = nMinHth || 1;
    this.state = sState || "down";
    var obj = document.getElementById(id);
    if (intervalId != null) window.clearInterval(intervalId);
    function openBox() {
        var h = obj.offsetHeight;
        if (h < 32) {
            obj.style.height = 0;
            document.getElementById('top_slideAD_small').style.display = "";
            document.getElementById('top_slideAD_small').style.visibility = 'visible';
        }
        else {
            obj.style.height = ((this.state == "down") ? (h + 4) : (h - 36)) + "px";
        }
        if (obj.offsetHeight > this.maxHeigth) {
            window.clearInterval(intervalId);
            intervalId = window.setInterval(closeBox, this.stayTime);
        }
        if (obj.offsetHeight < this.minHeigth) {
            window.clearInterval(intervalId);
            obj.style.display = "none";

        }
    }

    function closeBox() {
        slideAd(id, this.stayTime, "up", nMaxHth, nMinHth);
    }
    intervalId = window.setInterval(openBox, 60);
}

function closebtn() {
    document.getElementById('top_slideAD_big').innerHTML = '';
    document.getElementById('top_slideAD_small').innerHTML = '';
    document.getElementById('top_slideAD_small').style.display = "none";
}

function showcl() {
    window.location.reload();
}

if (isDateIn("2010-11-1", "2010-11-23")) {
    var showtime = 6; ////大图片显示的时间 单位：秒
    var bigimg = "/root/ad/yb_big.gif";
    var smallimg = "/root/ad/yb_small.gif";
    var targeturl = "/News/NewsInfo.aspx?u=NjA3MQ==&l=7FA1575CBD7027C9A799983A485C3C2F";

    document.write("<div class='La1' id='top_slideAD_big' style='background:#ffffff;overflow:hidden; margin-top:0px; margin-bottom:0px;'>");
    document.write("<a href='" + targeturl + "' target='_blank'><img src='" + bigimg + "' alt='' style='border:0px;' /></a>");
    document.write("</div>");
    document.write("<div class='La2' id='top_slideAD_small' style='background:#FFE597;overflow:hidden; margin:0px;display:none;'>");
    document.write("<a href='" + targeturl + "' target='_blank'><img src='" + smallimg + "' alt='' style='border:0px;' /></a><span style='cursor:hand; font-size: 12px; color:#cccccc;text-decoration: none' onclick='showcl();'><img src='/root/ad/a.gif' alt='' /></span><a href='javascript:void(0);' onclick='closebtn();'><img src='/root/ad/b.gif' alt='' style='border:0;' /></a>");
    document.write("</div>");

    slideAd('top_slideAD_big', showtime);
}