高手过来看看为什么这句会错啊？
<HTML>
<HEAD>
<title> 入库单 </title>
<base target= "_self ">
<meta content= "Microsoft Visual Studio .NET 7.1 " name= "GENERATOR ">
<meta content= "C# " name= "CODE_LANGUAGE ">
<meta content= "JavaScript " name= "vs_defaultClientScript ">
<meta content= "http://schemas.microsoft.com/intellisense/ie5 " name= "vs_targetSchema ">
</HEAD>
<body MS_POSITIONING= "GridLayout ">
<form id= "Form1 " method= "post " runat= "server ">
<asp:dropdownlist id= "ddlarray " Visible= "False " Runat= "server "> </asp:dropdownlist> <asp:label id= "msg " Visible= "False " Runat= "server " EnableViewState= "False " ForeColor= "red "> </asp:label>
<TABLE cellSpacing= "1 " cellPadding= "4 " width= "100% " align= "center " bgColor= "#ffffff " border= "0 ">
<tr>
<td vAlign= "middle ">
<TABLE cellSpacing= "1 " cellPadding= "4 " width= "280 " align= "center " bgColor= "#006699 " border= "0 ">
<TR bgColor= "#304d7c ">
<TD align= "center " bgColor= "#34a4e0 " height= "28 "> <B> <font color= "yellow "> 入库单 </font> </B> </TD>
</TR>
<TR>
<TD bgColor= "#ffffff ">
<TABLE cellSpacing= "0 " cellPadding= "4 " bgColor= "#ffffff " border= "0 ">
<tr>
<td style= "WIDTH: 47px " align= "right " width= "20% "> <asp:label id= "Label1 " runat= "server "> 编 码: </asp:label> </td>
<td width= "80% "> <asp:textbox id= "PIDIn " Runat= "server " Width= "177px " Wrap= "False "> </asp:textbox> </td>
</tr>
<tr>
<td style= "WIDTH: 47px " align= "right " width= "20% "> <asp:label id= "Label2 " style= "TEXT-ALIGN: center " runat= "server "> 数 量: </asp:label> </td>
<td width= "80% "> <asp:textbox id= "Textbox1 " Runat= "server " Width= "177px " Wrap= "False "> 1 </asp:textbox> </td>
</tr>
<tr>
<td align= "center " colSpan= "2 "> <asp:button id= "btn_BarcodeInPut " runat= "server " CssClass= "buttonsubmit " Text= "提 交 "> </asp:button> <input onclick= "javascript:window.close(); " type= "button " value= "关 闭 " name= "btClose " Class= "buttonsubmit "> </td>
</tr>
</TABLE>
</TD>
</TR>
</TABLE>
</td>
</tr>
</TABLE>
<script language= "javascript "> document.all( "BarcodeIn ").select(); </script>
</form>
</body>
</HTML>
在打开这个页面时，就出出现指明的错误的提示。
其中出错误的就是这句：
<script language= "javascript "> document.all( "BarcodeIn ").select(); </script>
这句应该是没有问题的啊！应该如何修改啊？谢谢了！
[解决办法]
粘在 </Head> 前面
[解决办法]
BarcodeIn是什么的id，根本没有啊
