<form action="userinfoAction" method="post"
- <SCRIPT type="text/javascript">
- document.write("<h1>hello world</h1>");
- function check(form){
- if(form.loginname.value == "")
- {
- alert("用户名不能为空!");
- form.loginname.focus();
- return false;
- }
- if(form.loginpwd.value!=form.password2.value){
- alert("两次输入的密码不一致 !");
- form.password2.focus();
- return false;
- }
- if(form.email.value == "")
- {
- alert("请输入邮件 !");
- form.email.focus();
- return false;
- }
- var regm = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;//验证Mail的正则表达式,^[a-zA-Z0-9_-]:开头必须为字母,下划线,数字,
- if (form.email.value!="" && !form.email.value.match(regm) )
- {
- alert("邮件格式不对,检查后重新输入!");
- form.email.focus();
- return false;
- }
- else
- return true;
- }
- </script>