表单递交合法性检测-Email

以下代码加入HTML的
 1<body>区：   
 2<script language="javascript">   
 3<!-- Begin   
 4function chk(email, formname)   
 5{   
 6invalid = "";   
 7  
 8if (!email)   
 9invalid = "请输入您的Email地址。";   
10  
11else {   
12  
13if ( (email.indexOf("@") == -1) || (email.indexOf(".") == -1) )   
14invalid += "\n\nEmail地址不合法。应当包含'@'和'.'；例如('.com')。请检查后再递交。";   
15  
16if (email.indexOf("your email here") > -1)   
17invalid += "\n\nEmail地址不合法，请检测您的Email地址，在域名内应当包含'@'和'.'；例如('.com')。";   
18  
19if (email.indexOf("\\\") > -1)   
20invalid += "\n\nEmail地址不合法，含有非法字符(\\\\)。";   
21  
22if (email.indexOf("/") > -1)   
23invalid += "\n\nEmail地址不合法，含有非法字符(/)。";   
24  
25if (email.indexOf("'") > -1)   
26invalid += "\n\nEmail地址不合法，含有非法字符(')。";   
27  
28if (email.indexOf("!") > -1)   
29invalid += "\n\nEmail地址不合法，含有非法字符(!)。";   
30  
31if ( (email.indexOf(",") > -1) || (email.indexOf(";") > -1) )   
32invalid += "\n\n只输入一个Email地址，不要含有分号和逗号。";   
33  
34if (email.indexOf("?subject") > -1)   
35invalid += "\n\n不要加入'?subject=...'。";   
36  
37}   
38if (invalid == "")   
39{   
40return true;   
41}   
42else   
43{   
44alert("输入的Email可能包含错误：" + invalid);   
45return false;   
46}   
47  
48}   
49// End -->   
50</script>
51<form action="submit.asp" method="post" name="myform" onsubmit="return chk(document.myform.email.value)">
52<div align="center">
53<input name="email" type="text" value="your email here"/>
54<input name="Submit" type="submit" value="Submit"/>
55</div>
56</form></body>
表单递交合法性检测-Email&nbsp;

表单递交合法性检测-Email
