如何在父窗口判断子窗口有没有值？好兄弟哪位高手解决了小弟我给100分，死了

怎么在父窗口判断子窗口有没有值？好兄弟谁解决了我给100分，在线等，急死了
operation.asp

怎么样在operation.asp 中写脚本判断 IFRAME中upfile6.asp里的影象上传东西了？及在线等，好兄弟谁解决了我给100分，在线等，急死了！！！

<script language= "JavaScript " type= "text/JavaScript ">

function Check()
{
if(blform.Casename.value== " ")
{
alert( "请填写手术名称！ ");
blform.Casename.focus();
return false;
}
if(document.frames( "mqs6 ").Accessories6.value== " ")//这里不行啊！！！！
{
alert( "请上传影象！ ");
return false;
}
//-->
</script>

<form action= "save_bl_action.asp " method= "post " name= "blform " id= "blform ">
<tr bgcolor= "#ffffff ">
<td align= "right "> <font color= "#FF0000 "> * </font> 病例名称： </td>
<td colspan= "5 " align= "left " bgcolor= "#ffffff "> <input name= "Casename " type= "text " id= "Casename " size= "55 " /> </td>
</tr>
<tr bgcolor= "#ffffff ">
<td align= "right "> 手术影像： </td>
<td colspan= "5 " align= "left "> <IFRAME name=mqs6 marginWidth=0 marginHeight=0 src=upfile6.asp?filename= <%=filename%> frameBorder=0 width=400 scrolling=no height=100> </IFRAME> </td>
</tr>
</form>

upfile6.asp


<%on error resume next%>
<meta http-equiv= "Content-Type " content= "text/html;charset=gb2312 ">
<link href= "/img/index.css " rel= "stylesheet " type= "text/css ">
<script language= "JavaScript " src= "../inc/header.js "> </script>
<%
dim act
act = request( "act ")

sub err_msg(message)%>
<script> alert( ' <%=message%> ');history.go(-1); </script>
<script> window.close(); </script>

<%response.End
end sub

select case act
case "up " '上传文件

if session( "Accessories6List6 ") = Empty then
dim Accessories6List6
end if

dim fso,strDir,ftime,FileUp,FullPath,types

Set fso = Server.CreateObject( "Scripting.FileSystemObject ")
strDir= "./upfile/translation/ "& " "
if not fso.folderexists(Server.MapPath(strDir)) then fso.CreateFolder(Server.MapPath(strDir))

randomize
dim s
s = cstr(Int(Rnd()*(99999-10100+1))+10100)
ftime= " "&year(now)&month(now)&day(now)&hour(now)&minute(now)&second(now) & s & " "

set fso = nothing
FileName=now() '开始取文件名
FileName=replace(FileName, "- ", " ")
FileName=replace(FileName, ": ", " ")
FileName=replace(FileName, " ", " ")
FileName=FileName+rndNum(4)
On Error Resume Next
Set FileUP = Server.CreateObject( "Persits.Upload ")
FileUP.SetMaxSize 1000000, True
FileUP.Save
'if FileUP.TotalBytes = 0 then err_msg( "当前文件为空文件。 ")
Set File = FileUP.Files( "in_v ")

ext=LCase(right(file.ext,len(file.ext)-1))
if ext= " " then
err_msg( "当前文件为空文件。 ")
end if

if file.ext <> ".wmv " and file.ext <> ".mpg " and file.ext <> ".wav " and file.ext <> ".mp3 " and file.ext <> ".wma " and file.ext <> ".mpeg " then
err_msg( "只允许上传wmv|mpg|wav|mp3|wma类型文件。 ")

end if

FullPath= "./upfile/translation/ "
'types=mid(FullPath,InStrRev(FullPath, ". ")+1)
'types=LCase(types)

filename=filename+ ". "+ext
'File.SaveAs Server.mappath( " "&filename& " ")

File.SaveAs "K:\case\upfile\translation\ " & Filename

if session( "Accessories6List6 ") <> " " then
session( "Accessories6List6 ") = session( "Accessories6List6 ") & "| "
end if
session( "Accessories6List6 ") = session( "Accessories6List6 ") &filename

case "delete " '删除文件
dim sfile,sfilename
sfile = request( "file ")
sfilename = server.mappath( "../upfile/translation ") & "\ " & sfile
set fso = Server.CreateObject( "Scripting.FileSystemObject ")
if fso.FileExists(sfilename) then
fso.DeleteFile sfilename
end if
File.DeleteFile "K:\case\upfile\translation "&FileName
set fso = nothing

session( "Accessories6List6 ") = replace(session( "Accessories6List6 "),sfile, " ")
session( "Accessories6List6 ") = replace(session( "Accessories6List6 "), "|| ", "| ")
'response.Write(session( "Accessories6List6 "))
'response.End()
end select%>
<body topmargin=0 rightmargin=0 leftmargin=0>
<form enctype= "multipart/form-data " method= "post " action= "upfile6.asp?act=up " name= "form_up " onSubmit= "return checkform(); ">
<input name= "cmd " type= "hidden " value= "delete ">
<script language= "JavaScript ">

</script>
<table cellpadding=0 cellspacing=0 width=100% class=a4>
<tr>
<td height= "30 ">
<input name=in_v type=file class= "editbox " id= "in_v " style= "width:330; " size=60>
<input type= "submit " value= "上传 " name=Submit class= "button ">
</td>
</tr>
<tr>
<td height= "30 ">
<select name= "Accessories6 " id= "Accessories6 " class= "editbox " style= "width:150; ">
<%if act = "up " or act = "delete " or act = "modify " then
dim i
Accessories6List6 = split(session( "Accessories6List6 "), "| ")
for i = 0 to ubound(Accessories6List6)
if trim(Accessories6List6(i)) <> " " then%>
<option value= " <%=Accessories6List6(i)%> "> <%=Accessories6List6(i)%> </option>
<%end if
next
else
session.Contents.Remove( "Accessories6List6 ")
end if%>
</select>
  <input name= "Delete " type= "button " class= "button " id= "Delete " value= "删除 " onClick= "javascript:DeleteFile(); ">
</td>
</tr>
</table>
</form>

------解决方案--------------------

引用iframe中嵌入页面的相关属性，使用window.frames[ 'iframeid ']或
document.getElementById( "iframeid ").contentWindow

引用iframe的相关属性，使用document.getElementById( 'iframeid ')

if(document.frames( "mqs6 ").Accessories6.value== " ")//这里不行啊！！！！
这句是在当前页面获取Accessories6，而不是在iframe中的页面里获取，应该改为：
if(window.frames[ "mqs6 "].form名.Accessories6.value== " ")
或
if(document.getElementById( "mqs6 ").contentWindow.form名.Accessories6.value== " ")

[解决办法]
写法是没错只是Accessories6 是form_up内的表单元素需要先指明form_up

document.frames[ "mqs6 "].document.getElementById( "Accessories6 ").value;//一般是这么取值
按照你的写法可以这样
document.frames[ "mqs6 "].form_up.Accessories6.value;

如何在父窗口判断子窗口有没有值？好兄

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