..... <script language=javascript> function CheckInput() { var strUserid=document.frmMail.userid.value; var strTitle=document.frmMail.title.value; var strContent=document.frmMail.content.value;
alert(strUserid); if(strUserid.length!=6) { alert("The userid must be 6 characters!"); return false; }
if(strTitle.length==0) { alert("The mail title can not be empty!"); return false; }
if(strContent.length==0) { alert("The mail content can not be empty!"); return false; }
<script language=javascript>
function CheckInput()
{
var strUserid=document.frmMail.userid.value;
var strTitle=document.frmMail.title.value;
var strContent=document.frmMail.content.value;
alert(strUserid);
if(strUserid.length!=6)
{
alert("The userid must be 6 characters!");
return false;
}
if(strTitle.length==0)
{
alert("The mail title can not be empty!");
return false;
}
if(strContent.length==0)
{
alert("The mail content can not be empty!");
return false;
}
return true;
}function ConfirmMail()
{
if(!CheckInput()) return false;
var strMsg="mailto:"+document.frmMail.tomail.value+"\n";
strMsg+="mail title:"+document.frmMail.mail_title.value+"\n";
strMsg+="mail content:"+document.frmMail.mail_content.value+"\n";
if (document.frmMail.ccmail.value!="请选择")
strMsg+="cc:"+document.frmMail.ccmail.value+"\n";
if(window.confirm(strMsg))
document.frmMail.action="sendmail.php3";
}
</script><body background="./image/bg.gif">
<center><font class="font">邮件撰写</font>
<form action="" method=post name=frmMail>
<table border="0" width="90%" height="90%">
<tr width="100%">
<td align=center>
<table border="1" width="100%" height="90%" bgcolor="#ffffcc">
<tr>
<td width="100" height=30><nobr>主题</nobr></td>
<td height=30>
<input type="text" name="title" size=50 maxlength=100>
</td>
</tr>
<tr>
<td width="100" height=30><nobr>客户ID</nobr></td>
<td height=30><input type="text" name="userid" size=50 maxlength=6></td>
</tr>
<tr rowspan=3>
<td colspan=2>
<textarea cols=70 rows=15 name="content"></textarea>
</td>
</tr>
</table>
</td>
<td width="120">
<table border="0" width="120" height="90%">
<tr>
<td width="120" height=30>50日本语文字</td>
</tr>
<tr>
<td width="120" height=30>ac****</td>
</tr>
<tr>
<td width="120">
收件人<br>
<select name="tomail">
.....
哈哈,一个小小的错误:
我错把title当成 userid了
多谢karma(无为)
{
......
if (document.frmMail.ccmail.value !="请选择")
....
} 不是
if (document.frmMail.ccmail.value!="请选择")