function checkForm(){
 if(form1.id.value==""){
  form1.id.focus();
  alert("아이디애러");  
 }else if(form1.pw.value==""){
  form1.pw.focus();
  alert("비번애러");
 }else if(form1.irum.value==""){
  form1.irum.focus();
  alert("이름애러");
 }else if(form1.jumin1.value==""||form1.jumin2.value==""){
  form1.jumin1.focus();
  alert("주민애러");
 }else{
  alert("가입완료");
  form1.submit();
 }
}

- submit 버튼사용경우
<form method=post action=~.jsp onSubmit="formcheck();return false;">        

jsp
트랙백 주소 : http://deuxism.freelog.net/trb.php?id=50303
Secret