var suspendcode = "";
suspendcode = "<DIV id=lovexin2 style='Z-INDEX: 10; RIGHT:-25px; POSITION: absolute; TOP:150px; width:25px; height:80px;'><a href='http://chat.meiyi.cn/' target='_blank'><img src='http://www.meiyi.cn/images/kefu_1.gif' border='0'></a></DIV>"

lastScrollY = 0;

$(".kefu").html(suspendcode);
$(this).scroll(function() {    // 页面发生scroll事件时触发    
    var bodyTop = 0;
    if (typeof window.pageYOffset != 'undefined') {
        bodyTop = window.pageYOffset;
    }
    else if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') {
        bodyTop = document.documentElement.scrollTop;
    }
    else if (typeof document.body != 'undefined') {
        bodyTop = document.body.scrollTop;
    }

    //    percent = .5 * (bodyTop - lastScrollY);
    //    if (percent > 0) percent = Math.ceil(percent);
    //    else percent = Math.floor(percent);
    $("#lovexin2").css("top", 150 + bodyTop);
    // lastScrollY = lastScrollY + percent;
});

//window.setInterval("heartBeat()", 1);