[問題] 請問這段語法哪裡出錯
javascript錯誤訊息是物件不支援此屬性或方法
可是我看不出我哪裡寫錯
<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<SCRIPT language="JavaScript">
function ff(){
var un2 = document.forms.length;
var un= "";
//un2 = un2-1;
var c =un2/2;
var i;
for( i =1; i < c; i++){
un = un+document.forms[i*2].dc.value+"z;aa;aaz";
}
document.storeta.d1.value=un;
var un3 = document.storeta.d1.value;
alert(un3);
document.storeta.submit();
}
</SCRIPT>
</head>
<body>
<table border="1">
<TR>
<TD width="80">計畫名稱</TD><TD>sffsdf</TD><td></td>
</TR>
<TR>
<TD>專案名稱</TD><TD></TD><td></td>
</TR>
<TR>
<TD>軟體名稱</TD><TD></TD><td></td>
</TR>
<TR>
<TD>合作單位</TD><TD></TD><td></td>
</TR>
<TR>
<TD>系統分析</TD><TD></TD><td></td>
</TR>
<TR>
<TD>系統設計</TD><TD></TD><td></td>
</TR>
<TR>
<TD>自訂資訊</TD><TD></TD><td>
<form>
<input value="存檔" onclick="ff()" type="button">
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
說有錯的是這一行
</form>
</td>
</TR>
<TR>
<TD width="80">作者名稱</TD><TD></TD><td></td>
</TR>
<TR>
<TD>文件種類</TD><TD>軟體需求規格書</TD><td></td>
</TR>
<TR>
<TD>文件日期</TD><TD>民國年月日</TD><td></td>
</TR>
<TR>
<td>文件名稱</td><TD></TD><td>
<form name="軟體需求規格書" target="b2" action="../show2.jsp">
<input type="hidden" name="co2" value="1"><input type="hidden" name="nodelv" value="Document"><input type="hidden" name="targetname" value="軟體需求規格書"><input type="submit" value="刪除">
</form>
</td><td></td>
</TR>
<tr>
<td colspan="3">
<form name="aa">
<textarea name="dc" cols="60" rows="10"> </textarea>
</form>
</td>
</tr>
</table>
</body>
<form method="post" action="../storetext.jsp" name="storeta" id="storeta">
<input id="d1" type="hidden">
</form>
</html>
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