Yii用AJAX注册验证

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<script type="text/javascript">         $(document).ready(function(){          $('#RegisterForm_username').blur(function(){              var username=$('#RegisterForm_username').val();                    $.post('<?php echo Yii::app()->request->baseUrl ?>/index.php/site/name',{name:username},function(data,status){                     data=data.replace( /^\s+|\s+$/g, "");                 //  alert(encodeURIComponent(data+"\n"+username));                  if(username=="")                  {                                     $('#RegisterForm_username_em_').html('<span style="color:red;display:block">用户名不能为空</span>');                  }                  else if(data==username)                  {                       $('#RegisterForm_username_em_').html('<span style="color:red;display:block">用户名已存在</span>');                  }                  else if(data=="ne"){                      $('#RegisterForm_username_em_').html('<span style="color:red;display:none">用户名</span>');                  }                                    });            });                   $('#RegisterForm_password').blur(function(){              var password=$('#RegisterForm_password').val();              $.post('<?php echo Yii::app()->request->baseUrl ?>/index.php/site/password',function(data,status){                  if(password=="")                  {                       $('#RegisterForm_password_em_').html('<span style="color:red;display:block">密码不能为空</span>');                  }                  else                  {                       $('#RegisterForm_password_em_').html('<span style="color:red;display:none">密码不能为空</span>');                  }              });            });            $('#RegisterForm_repassword').blur(function(){                 var password=$('#RegisterForm_password').val();                 var repassword=$('#RegisterForm_repassword').val();              $.post('index.php/site/repassword',function(data,status){                  if(repassword!=password)                  {                       $('#RegisterForm_repassword_em_').html('<span style="color:red;display:block">两次输入密码不相等</span>');                    }                  else                  {                       $('#RegisterForm_repassword_em_').html('<span style="color:red;display:none">两次输入密码不相等</span>');                  }              });            });          $('#RegisterForm_email').blur(function(){             var email=$('#RegisterForm_email').val();              $.post('<?php echo Yii::app()->request->baseUrl ?>/index.php/site/email',function(data,status){                  if(email=="")                  {                   $('#RegisterForm_email_em_').html('<span style="color:red;display:block">邮箱地址不能为空</span>');                    //  return false;                  }                  else if(!email.match(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/)){                      $('#RegisterForm_email_em_').html('<span style="color:red;display:block">邮箱格式不正确</span>');                  }                  else if(email.match(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/))                  {                   $('#RegisterForm_email_em_').html('<span style="color:red;display:none">邮箱格式正确</span>');                  }            });            });          $('#register').click(function(){            $.post('<?php echo Yii::app()->request->baseUrl ?>/index.php/site/register',function(){                  var username=$('#RegisterForm_username').val();                  var password=$('#RegisterForm_password').val();                  var repassword=$('#RegisterForm_repassword').val();                  var email=$('#RegisterForm_email').val();                  if(username==""&&password==""&&repassword==""&&email=="")                  {                     location.href='<?php echo Yii::app()->request->baseUrl ?>/index.php/site/register';                  }                  else                  {                     location.href='<?php echo Yii::app()->request->baseUrl ?>/index.php/site/login';                  }             });            });         }); </script>