javascript
<html>
<head>
<title>test</title>
<script language="javascript">
function emailCheck () {
var emailStr=document.all.form1.tel.value;
alert(emailStr);
var emailPat=/^(.+)(.+)$/;
var matchArray=emailStr.match(emailPat);
if (matchArray==null) {
alert("电子邮件地址必须包括 ( 和 . )")
return false;
}
return true;
}
</script>
</head>
<body>
<form name="form1">
<input type="text" name="tel"/>
<input type="button" value="press" />
</form>
</span>
</body>
</html>
