广告悬浮窗

#msg_win{
    position:absolute;
    left:0px;
    display:none;
    overflow:hidden;
    z-index:99;
    border:1px solid #c00;
    350px;
    font-size:12px;
    margin:0px;
    background-color: #FDFFDA;
} 
#msg_win .icos{position:absolute;top:2px;*top:0px;right:2px;z-index:9;} 
.icos a{float:left;color:#FFFFFF;margin:1px;text-align:center;font-weight:bold;14px;height:22px;line-height:22px;padding:1px;text-decoration:none;font-family:webdings;} 
.icos a:hover{color:#FFCC00;} 
#msg_title{
    border-bottom:1px solid #710B97;
    border-top:1px solid #FFF;
    border-left:1px solid #FFF;
    color:#FFFFFF;
    height:25px;
    line-height:30px;
    text-indent:5px;
    font-weight:bold;
    background-color: #B21C01;
    font-size: 14px;
} 
#msg_content{margin:5px;margin-right:0;340px;overflow:hidden;} 

 <div id="msgWindow" style="position: fixed; right:285px;margin-top:200px;">
        <div id="msg_win" style="display: block; visibility: visible; opacity: 1;280px;">
            <div class="icos"><a id="msg_min" title="最小化" href="javascript:void 0">_</a><a id="msg_close" title="关闭" href="javascript:void 0">×</a></div>
            <div id="msg_title">联系方式</div>
            <div id="msg_content">
                <p  style="color:#0026ff;">申报企业有账号和申报问题请直接联系主管部门<br />如有技术问题请拨打技术支持电话
</p>
</div>
        </div>
    </div>


<script type="text/javascript">
    $(document).ready(function () {
        initMsg();

        $.get("/msg.asp", function (result) {

            if (result == "") {
                $('#msgWindow').hide();
            } else {
                $('#msgWindow').show();
                $('#msg_content').html(result);
            }

        });

    });


    function initMsg() {
        var Message = {
            set: function () {//最小化与恢复状态切换 
                var set = this.minbtn.status == 1 ? [0, 1, 'block', this.char[0], '最小化'] : [1, 0, 'none', this.char[1], '恢复'];
                this.minbtn.status = set[0];
                this.win.style.borderBottomWidth = set[1];
                this.content.style.display = set[2];
                this.minbtn.innerHTML = set[3]
                this.minbtn.title = set[4];
                this.win.style.top = this.getY().top;
            },
            close: function () {//关闭 
                this.win.style.display = 'none';
                window.onscroll = null;
            },
            setOpacity: function (x) {//设置透明度 
                var v = x >= 100 ? '' : 'Alpha(opacity=' + x + ')';
                this.win.style.visibility = x <= 0 ? 'hidden' : 'visible'; //IE有绝对或相对定位内容不随父透明度变化的bug 
                this.win.style.filter = v;
                this.win.style.opacity = x / 100;
            },
            show: function () {//渐显 
                clearInterval(this.timer2);
                var me = this, fx = this.fx(0, 100, 0.1), t = 0;
                this.timer2 = setInterval(function () {
                    t = fx();
                    me.setOpacity(t[0]);
                    if (t[1] == 0) { clearInterval(me.timer2) }
                }, 6); //10 to 6 
            },
            fx: function (a, b, c) {//缓冲计算 
                var cMath = Math[(a - b) > 0 ? "floor" : "ceil"], c = c || 0.1;
                return function () { return [a += cMath((b - a) * c), a - b] }
            },
            getY: function () {//计算移动坐标 
                var d = document, b = document.body, e = document.documentElement;
                var s = Math.max(b.scrollTop, e.scrollTop);
                var h = /BackCompat/i.test(document.compatMode) ? b.clientHeight : e.clientHeight;
                var h2 = this.win.offsetHeight;
                //return {foot: s + h + h2 + 2+'px',top: s + h - h2 - 2+'px'} 
                return { foot: -2 * h2 + 2 + 'px', top: -2 + 'px' }
            },
            moveTo: function (y) {//移动动画 
                clearInterval(this.timer);
                var me = this, a = parseInt(this.win.style.top) || 0;
                var fx = this.fx(a, parseInt(y));
                var t = 0;
                this.timer = setInterval(function () {
                    t = fx();
                    me.win.style.top = t[0] + 'px';
                    if (t[1] == 0) {
                        clearInterval(me.timer);
                        me.bind();
                    }
                }, 6); //10 to 6 
            },
            bind: function () {//绑定窗口滚动条与大小变化事件 
                var me = this, st, rt;
                window.onscroll = function () {
                    clearTimeout(st);
                    clearTimeout(me.timer2);
                    me.setOpacity(0);
                    st = setTimeout(function () {
                        me.win.style.top = me.getY().top;
                        me.show();
                    }, 100); //600 mod 100 
                };
                window.onresize = function () {
                    clearTimeout(rt);
                    rt = setTimeout(function () { me.win.style.top = me.getY().top }, 100);
                }
            },
            init: function () {//创建HTML 
                function $(id) { return document.getElementById(id) };
                this.win = $('msg_win');
                var set = { minbtn: 'msg_min', closebtn: 'msg_close', title: 'msg_title', content: 'msg_content' };
                for (var Id in set) { this[Id] = $(set[Id]) };
                var me = this;
                this.minbtn.onclick = function () { me.set(); this.blur() };
                this.closebtn.onclick = function () { me.close() };
                this.char = navigator.userAgent.toLowerCase().indexOf('firefox') + 1 ? ['_', '::', '×'] : ['0', '2', 'r']; //FF不支持webdings字体 
                this.minbtn.innerHTML = this.char[0];
                this.closebtn.innerHTML = this.char[2];
                setTimeout(function () {//初始化最先位置 
                    me.win.style.display = 'block';
                    me.win.style.top = me.getY().foot;
                    me.moveTo(me.getY().top);
                }, 0);
                return this;
            }
        };
        Message.init();
    }
</script>