右侧浮动QQ的问题，JS在DW里面是好的，放到VS2008就出错，麻烦看看

Question

<div id="divStay" style="position: absolute">
    <table cellspacing="0" cellpadding="0" width="100%" border="0">
        <tbody>
            <tr>
                <td valign="top" width="7%">
                </td>
            </tr>
        </tbody>
    </table>
</div>
<div id="divStayTopleft" style="position: absolute;">
    <table cellspacing="0" cellpadding="0" width="109" border="0">
        <tr>
            <td colspan="3">
                <a onclick="CloseQQ()" href="javascript:;">
                    <img height="34" src="qq_top.gif" width="109" usemap="#Map" border="0"></a>
            </td>
        </tr>
        <tr>
            <td width="6">
                <img height="100" src="qq_life.gif" width="6">
            </td>
            <td valign="top" width="96">
                <table cellspacing="0" cellpadding="0" width="90" align="center" border="0">
                    <tr>
                        <td height="30">
                            <table cellspacing="0" cellpadding="0" width="90" border="0">
                                <tr>
                                    <td>
                                        <img height="13" src="qq_ico1.gif" width="16"><span class="font_12"> <span style="font-size: 9pt">
                                            客户服务</span></span>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <table border="0" width="100%" cellpadding="2">
                                <tr>
                                    <td valign="bottom">
                                        <a href="http://wpa.qq.com/msgrd?v=3&uin=2471718708&site=qq&menu=yes" target="_blank">
                                            <img border="0" src="qq2.gif"></a>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <table border="0" width="100%" cellpadding="2">
                                <tr>
                                    <td valign="bottom">
                                        <a href="http://wpa.qq.com/msgrd?v=3&uin=2471718708&site=qq&menu=yes" target="_blank">
                                            <img border="0" src="qq1.gif"></a>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                        </td>
                    </tr>
                </table>
            </td>
            <td width="7">
                <img height="100" src="qq_right.gif" width="7">
            </td>
        </tr>
        <tr>
            <td colspan="3">
                <img height="30" src="qq_bottom1.gif" width="109">
            </td>
        </tr>
        <tr>
            <td colspan="3">
                <img height="33" src="qq_logo.gif" width="109">
            </td>
        </tr>
    </table>
</div>function CloseQQ() {
        divStayTopleft.style.display = "none";
        return true;
    }
    function FloatTop() {
        var startX1 = document.body.offsetWidth - 130, startY1 = 5;
        var startX2 = 0, startY2 = 95;
        var ns = (navigator.appName.indexOf("Netscape") != -1);
        var d = document;
        function ml(id, startX, startY) {
            var el = d.getElementById ? d.getElementById(id) : d.all ? d.all[id] : d.layers[id];
            if (d.layers) el.style = el;
            el.sP = function(x, y) { this.style.left = x; this.style.top = y; };            el.x = startX;
            el.y = startY;
            return el;
        }
        window.stayTopLeft = function() {
            var pY = ns ? pageYOffset : document.body.scrollTop;
            ftlObj.y += (pY + startY1 - ftlObj.y) / 8;
            ftlObj1.y += (pY + startY2 - ftlObj1.y) / 8;
            ftlObj.sP(document.body.scrollLeft + document.body.offsetWidth - 125, ftlObj.y);
            ftlObj1.sP(ftlObj1.x, ftlObj1.y);
            setTimeout("stayTopLeft()", 30);
        }
        //alert(document.body.scrollLeft);
        //alert(document.body.offsetWidth);
        //ftlObj = ml("divStay",document.body.scrollLeft+document.body.offsetWidth-125,0);
        //ftlObj1 = ml("divStayTopLeft",0,30);
        ftlObj = ml("divStay", (document.body.scrollLeft + document.body.offsetWidth) - 130, 0);
        ftlObj1 = ml("divStayTopLeft", (document.body.scrollLeft + document.body.offsetWidth) - 130, 30);
        stayTopLeft();
    }
    FloatTop();错误信息是红色那一句，在遇到JScript 运行时中断-‘null’为空或不是对象
这个代码我要查到母版页里面，去掉母版页的头部DOCTYPE也试过了 不行，知道的麻烦看看。

Answer 1

把JS放在最下面。等页面所有元素都出来在执行JS。否则放在头部元素没出来。就会报错误。

Answer 2

el.sP = function(x, y) { this.style.left = x; this.style.top = y; }
你alert一下el
然后在alert el.sp
看是哪一个为null

Answer 3

帮你改了js，其实不用写那么多。ie ff都测试可以<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
<script type="text/javascript">
var distance = 200;
function RightScroll(){
    var div = document.getElementById("divStayTopleft");
    var Stop = document.documentElement.scrollTop;
    var DTop = parseInt(div.offsetTop);
    if(Stop+distance!=DTop){
        var index = Math.ceil((Stop+distance-DTop)*0.1);
        div.style.top=index+DTop+"px";
    }
}
window.onload=function(){
    window.setInterval(RightScroll,10)
}
</script>
</head>
<body style="height:1000px">
    <form id="form1" runat="server">
    <div id="aa" style="position:absolute;top:300px;">aa</div>
<div id="divStayTopleft" style="position: absolute;right:100px;top:200px;">
    <table cellspacing="0" cellpadding="0" width="109" border="0">
        <tr>
            <td colspan="3">
                <a onclick="CloseQQ()" href="javascript:;">
                    <img height="34" src="qq_top.gif" width="109" usemap="#Map" border="0"></a>
            </td>
        </tr>
        <tr>
            <td width="6">
                <img height="100" src="qq_life.gif" width="6">
            </td>
            <td valign="top" width="96">
                <table cellspacing="0" cellpadding="0" width="90" align="center" border="0">
                    <tr>
                        <td height="30">
                            <table cellspacing="0" cellpadding="0" width="90" border="0">
                                <tr>
                                    <td>
                                        <img height="13" src="qq_ico1.gif" width="16"><span class="font_12"> <span style="font-size: 9pt">
                                            客户服务</span></span>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <table border="0" width="100%" cellpadding="2">
                                <tr>
                                    <td valign="bottom">
                                        <a href="http://wpa.qq.com/msgrd?v=3&uin=2471718708&site=qq&menu=yes" target="_blank">
                                            <img border="0" src="qq2.gif"></a>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <table border="0" width="100%" cellpadding="2">
                                <tr>
                                    <td valign="bottom">
                                        <a href="http://wpa.qq.com/msgrd?v=3&uin=2471718708&site=qq&menu=yes" target="_blank">
                                            <img border="0" src="qq1.gif"></a>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td>
                        </td>
                    </tr>
                </table>
            </td>
            <td width="7">
                <img height="100" src="qq_right.gif" width="7">
            </td>
        </tr>
        <tr>
            <td colspan="3">
                <img height="30" src="qq_bottom1.gif" width="109">
            </td>
        </tr>
        <tr>
            <td colspan="3">
                <img height="33" src="qq_logo.gif" width="109">
            </td>
        </tr>
    </table>
</div>
    </form>
</body>
</html>

Answer 4

ie ff测试都可以随滚动条滚动。测试没问题。