救急，在线等。

情况是这样的，我在vs2010中Web页面中弄了一个缩略图，但在  <form id="form1" runat="server"></form>下运行总是显示“Microsoft JScript 运行时错误: 'focpic' 未定义”，但在Web页面去掉<form id="form1" runat="server"></form>运行就不会出错。请大侠们帮解决一下，谢谢。<style>
 A
        {
            text-decoration: none;
        }
        A:link
        {
            color: #505050;
            
        }
        A:visited
        {
            color: #505050;
          
        }
        A:hover
        {
            color: #d40005;
            text-decoration: underline;
        }
        A:active
        {
            color: #f30;
        }
        IMG
        {
            border-top-width: 0px;
            border-left-width: 0px;
            border-bottom-width: 0px;
            border-right-width: 0px;
        }
        .box
        {
            float: left;
            width: 472px;
        }
        .box .boxpadding
        {
            padding-right: 8px;
            padding-left: 8px;
            margin-bottom: 0px;
            padding-bottom: 8px;
            padding-top: 8px;
        }
        #Slide
        {
            clear: both;
            border-right: #fff 1px solid;
            border-top: #fff 1px solid;
            margin-bottom: 6px;
            overflow: hidden;
            border-left: #fff 1px solid;
            width: 450px;
            border-bottom: #fff 1px solid;
            height: 335px;
        }
        #Slide A
        {
            color: #000;
        }
        .img
        {
            border-right: #fff 1px solid;
            background: #fff;
            margin: 0px auto;
            border-left: #fff 1px solid;
            text-align: center;
        }
        .boxpadding
        {
            border-right: #fff 1px solid;
            border-top: #fff 1px solid;
            background: #f8f8f8;
            margin-bottom: 8px;
            border-left: #fff 1px solid;
            padding-top: 10px;
            border-bottom: #fff 1px solid;
        }
        
        .thumb_title
        {
            margin-top: 10px;
            background: #fff;
            filter: alpha(opacity=30);
            width: 450px;
            text-indent: 10px;
            line-height: 25px;
            position: absolute;
            height: 25px;
            -moz-opacity: 0.3;
        }
        #Slide_Thumb
        {
            margin-top: 257px;
            margin-left: 0px;
            position: absolute;
        }
        .thumb_on
        {
            display: inline;
            float: left;
            margin-left: 8px;
            cursor: pointer;
        }
        .thumb_off
        {
            display: inline;
            float: left;
            margin-left: 8px;
            cursor: pointer;
        }
        .thumb_off
        {
            filter: alpha(opacity=50);
            -moz-opacity: 0.5;
        }
        .thumb_on
        {
            filter: alpha(opacity=100);
            -moz-opacity: 1;
        }
        .thumb_off IMG
        {
            border-right: #fff 1px solid;
            border-top: #fff 1px solid;
            margin-top: 12px;
            border-left: #fff 1px solid;
            width: 75px;
            border-bottom: #fff 1px solid;
            height: 56px;
        }
        .thumb_on IMG
        {
            border-right: #fff 1px solid;
            border-top: #fff 1px solid;
            border-left: #fff 1px solid;
            width: 91px;
            border-bottom: #fff 1px solid;
            height: 68px;
        }</style>
<table width="472" height="490" border="0" align="center" cellpadding="0" cellspacing="0">
        <tr>
            <td width="472">
                <div class="box" style="margin-bottom: 8px">
                    <div class="boxpadding">
                        <div id="Slide">
                            <a id="foclnk" href="IndexImage/IMG_0072.JPG" target="_blank">
                                <img id="focpic" style="filter: RevealTrans(duration=1; ransition=12); 
                                    position: absolute; left: 484; top: 94" src="IndexImage/IMG_0072.JPG" width="450"
                                    height="335" alt="" />
                            </a>
                            <div class="thumb_title" id="foctitle">
                                <a href="IndexImage/IMG_0072.JPG" target="_blank">图一</a></div>
                            <div id="Slide_Thumb">
                                <div class="thumb_on" id="tmb0" onmouseover="setfoc(0);" onmouseout="playit();">
                                    <a href="
                                       IndexImage/IMG_0072.JPG" target="_blank">
                                        <img alt="图一" src="IndexImage/IMG_0072.JPG" /></a></div>
                                <div class="thumb_off" id="tmb1" onmouseover="setfoc(1);" onmouseout="playit();">
                                    <a href="IndexImage/IMG_0075.JPG" target="_blank">
                                        <img alt="图二" src="IndexImage/IMG_0075.JPG" /></a></div>
                                <div class="thumb_off" id="tmb2" onmouseover="setfoc(2);" onmouseout="playit();">
                                    <a href="IndexImage/IMG_0076.JPG" target="_blank">
                                        <img alt="图三" src="IndexImage/IMG_0076.JPG" /></a></div>
                                <div class="thumb_off" id="tmb3" onmouseover="setfoc(3);" onmouseout="playit();">
                                    <a href="IndexImage/IMG_0078.JPG" target="_blank">
                                        <img alt="图四" src="IndexImage/IMG_0078.JPG" /></a></div>
                                <div class="thumb_off" id="tmb4" onmouseover="setfoc(4);" onmouseout="playit();">
                                    <a href="IndexImage/IMG_0079.JPG" target="_blank">
                                        <img alt="图五" src="IndexImage/IMG_0079.JPG" /></a></div>
                                <script language="javascript" type="text/javascript">
                                    var picarry = {};
                                    var lnkarry = {};
                                    var ttlarry = {};
                                    picarry[0] = "IndexImage/IMG_0072.JPG";
                                    lnkarry[0] = "IndexImage/IMG_0072.JPG";
                                    ttlarry[0] = "图一";
                                    picarry[1] = "IndexImage/IMG_0075.JPG";
                                    lnkarry[1] = "IndexImage/IMG_0075.JPG";
                                    ttlarry[1] = "图二";
                                    picarry[2] = "IndexImage/IMG_0076.JPG";
                                    lnkarry[2] = "IndexImage/IMG_0076.JPG";
                                    ttlarry[2] = "图三";
                                    picarry[3] = "IndexImage/IMG_0078.JPG";
                                    lnkarry[3] = "IndexImage/IMG_0078.JPG";
                                    ttlarry[3] = "图四";
                                    picarry[4] = "IndexImage/IMG_0079.JPG";
                                    lnkarry[4] = "IndexImage/IMG_0079.JPG";
                                    ttlarry[4] = "图五"
                                </script>
                            </div>
                        </div>
                    </div>
                </div>
            </td>
        </tr>
    </table>
    <div align="center">
        <script type="text/javascript">
            var currslid = 0;
            var slidint;
            function setfoc(id) {
                document.getElementById("focpic").src = picarry[id];
                document.getElementById("foclnk").href = lnkarry[id];
                document.getElementById("foctitle").innerHTML = '<a href="' + lnkarry[id] + '" target="_blank">' + ttlarry[id] + '</a>';
                currslid = id;
                for (i = 0; i < 5; i++) {
                    document.getElementById("tmb" + i).className = "thumb_off";
                };
                document.getElementById("tmb" + id).className = "thumb_on";
                focpic.style.visibility = "hidden";
                focpic.filters[0].Apply();
                if (focpic.style.visibility == "visible") {
                    focpic.style.visibility = "hidden";
                    focpic.filters.revealTrans.transition = 23;
                }
                else {
                    focpic.style.visibility = "visible";
                    focpic.filters[0].transition = 23;
                }
                focpic.filters[0].Play();
                stopit();
            }            function playnext() {
                if (currslid == 4) {
                    currslid = 0;
                }
                else {
                    currslid++;
                };
                setfoc(currslid);
                playit();
            }
            function playit() {
                slidint = setTimeout(playnext, 4500);
            }
            function stopit() {
                clearTimeout(slidint);
            }
            window.onload = function () {
                playit();
            }</script>
    </div>