注册校验器的引入

<script src="js/jquery.validate.min.js" type="text/javascript"></script>	
<script type="text/javascript">
$(function(){
		$("#myform").validate({
			rules:{
				"username":{
					"required":true,
					"checkUsername":true
				},
				"password":{
					"required":true,
					"rangelength":[6,12]
				},
				"repassword":{
					"required":true,
					"rangelength":[6,12],
					"equalTo":"#password"
				},
				"email":{
					"required":true,
					"email":true
				},
				"sex":{
					"required":true
				}
			},
			messages:{
				"username":{
					"required":"用户名不能为空",
					"checkUsername":"用户名已存在"
				},
				"password":{
					"required":"密码不能为空",
					"rangelength":"密码长度6-12位"
				},
				"repassword":{
					"required":"密码不能为空",
					"rangelength":"密码长度6-12位",
					"equalTo":"两次密码不一致"
				},
				"email":{
					"required":"邮箱不能为空",
					"email":"邮箱格式不正确"
				}
			}
		});
	});

</script>