blurイベントフォーム認証

    
    
    


    
    


    

        

            

                
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        function checkUsername(){
            var value = document.myform.username.value;
            var td = document.getElementById('username_info');

            if(value.match(/^\w{6,12}$/)=== null){
                td.innerHTML = ' 6-12 ， ， ';
                td.style.color = 'red';
                return false;
            }else{
                td.innerHTML = ' ';
                td.style.color = 'green';
                return true;
            }
        }

        function checkEmail(){
            var email = document.myform.username.value;
            var td = document.getElementById('email_info');

            if(email.match(/^[\w-]+@[\w-]+(\.\w+){1,3}$/)=== null){
                td.innerHTML = ' ';
                td.style.color = 'red';
                return false;
            }else{
                td.innerHTML = ' ';
                td.style.color = 'green';
                return true;
            }
        }

        function checkPwd(){
            var pwd = document.myform.pwd.value;
            var td = document.getElementById('pwd_info');
            if(pwd.length < 6 || pwd.length >18){
                td.innerHTML = ' 6-18 ';
                td.style.color = 'red';
                return false;
            }else{
                td.innerHTML = ' ';
                td.style.color = 'green';
                return true;
            }
        }
        function checkpRewd(){
            var pwd = document.myform.pwd.value;
            var repwd = document.myform.repwd.value;
            var td = document.getElementById('repwd_info');

            if(pwd != repwd){
                td.innerHTML = ' ';
                td.style.color = 'red';
                return false;
            }else{
                td.innerHTML = ' ';
                td.style.color = 'green';
                return true;
            }
        }


        function checkForm(){
        return checkUsername() && checkEmail() && checkPwd() && checkRepwd(); 
      }