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function checkUserLogin(userlogin){

with(userlogin){

      user_id.value = strim(user_id.value);

      user_pass.value = strim(user_pass.value);



      if(inerr(user_id,"Please enter your ID.")){

        return false;

      }



      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(user_id.value)) {

       alert("Your login ID contains invalid character(s). Please check it and login again.");

       user_id.focus();

      return false;

      }



     

      if(inerr(user_pass,"Please enter your password.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(user_pass.value)) {

       alert("Your password contains invalid character(s). Please check it and login again.");

       user_pass.focus();

      return false;

      } 

      

}

}







function checkRegForm(reg){

with(reg){

var filter=/^.+@.+\..{2,3}$/

         s_name.value = strim(s_name.value);

         s_login_id.value = strim(s_login_id.value);

         s_login_pass.value = strim(s_login_pass.value);

         s_login_pass2.value = strim(s_login_pass2.value);



         s_nationality.value = strim(s_nationality.value);

         s_sex.value = strim(s_sex.value);                           

 

         s_tel.value = strim(s_tel.value);

         s_cell.value = strim(s_cell.value);

         s_email.value = strim(s_email.value);



              

    if(inerr(s_name,"Please input your name. (Example: Peter Chou)")){

        return false;

      }

      

      if ((contain(s_name.value, "'~!@$%^-_&*=+|}{[];:,.?/`%\(\)><")))

      {

       alert("Your name contains invalid characters.");

       s_name.focus();

       return false;

      }

     

    if(inerr(s_login_id,"Please input login ID.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_id.value)) {

       alert("Your login ID contains invalid character(s). Please check it and login again.");

       s_login_id.focus();

      return false;

      }



      if(StrLen(s_login_id.value)>20 || StrLen(s_login_id.value)<6){

      alert('6 to 20 characters allowed for login ID.');

      s_login_id.focus();

      return false;      

      }



      if(inerr(s_login_pass,"Please input login password.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_pass.value)) {

       alert("Your login password contains invalid character(s). Please check it and login again.");

       s_login_pass.focus();

      return false;

      }

      

      if(StrLen(s_login_pass.value)>20 || StrLen(s_login_pass.value)<6){

      alert('6 to 20 characters allowed for password.');

      s_login_pass.focus();

      return false;      

      }

      

      if(inerr(s_login_pass2,"Please input login password again.")){

        return false;

      }      

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_pass2.value)) {

       alert("Your login password contains invalid character(s). Please check it and login again.");

       s_login_pass2.focus();

      return false;

      }

      

      if(StrLen(s_login_pass2.value)>20 || StrLen(s_login_pass2.value)<6){

      alert('6 to 20 characters allowed for password.');

      s_login_pass2.focus();

      return false;      

      }



      if(s_login_pass2.value!=s_login_pass.value){alert('The confirm password is not same as the login password.\nPlease check it and input again.');

         s_login_pass2.focus();

         return false;}      

         

      if(inerr(s_nationality,"Please input your nationality.")){

        return false;

      }         

          

      

      if(s_sex.value=='unknown'){

        alert("Please select your gender.");

        s_sex.focus();

        return false;

      }      

     

      if(inerr(s_tel,"Please input telephone number.")){

        return false;

      } 



      if(inerr(s_cell,"Please input cell phone number.")){

        return false;

      } 

     

     if((s_tel.value=="" || s_tel.value==null) && (s_cell.value=="" || s_cell.value==null)){

        alert('Telephone and cell phone number is required. You have to input at least one.');

        s_tel.focus();

        return false;

     }

     

     

      if(inerr(s_email,"Please input your E-mail.")){

        return false;

      } 





      if (!filter.test(s_email.value))

          {

          alert('Please input a valid E-mail.');

          s_email.focus();

          return false;

          }





}

}











function checkJoinForm(reg){

with(reg){

var filter=/^.+@.+\..{2,3}$/

         merchantID.value = strim(merchantID.value);

         loginPassword.value = strim(loginPassword.value);

         confirmloginPassword.value = strim(confirmloginPassword.value);

         username.value = strim(username.value);



         sex.value = strim(sex.value); 

         city.value = strim(city.value);

                          

 

         tel.value = strim(tel.value);

         email.value = strim(email.value);







    if(inerr(merchantID,"Please input a Merchant ID.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(merchantID.value)) {

       alert("Your Merchant ID contains invalid character(s). Please check it and login again.");

       merchantID.focus();

       return false;

      }



      if(StrLen(merchantID.value)>20 || StrLen(merchantID.value)<6){

      alert('6 to 20 characters allowed for login ID.');

      merchantID.focus();

      return false;      

      }











     if(inerr(loginPassword,"Please input login password.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(loginPassword.value)) {

       alert("Your login password contains invalid character(s). Please check it and login again.");

       loginPassword.focus();

      return false;

      }

      

      if(StrLen(loginPassword.value)>20 || StrLen(loginPassword.value)<6){

      alert('6 to 20 characters allowed for password.');

      m_pass.focus();

      return false;      

      }

      

      if(inerr(confirmloginPassword,"Please input login password again.")){

        return false;

      }      

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(confirmloginPassword.value)) {

       alert("Your login password contains invalid character(s). Please check it and login again.");

       confirmloginPassword.focus();

      return false;

      }

      

      if(StrLen(confirmloginPassword.value)>20 || StrLen(confirmloginPassword.value)<6){

      alert('6 to 20 characters allowed for password.');

      confirmloginPassword.focus();

      return false;      

      }



      if(confirmloginPassword.value!=loginPassword.value){alert('The confirm password is not same as the login password.\nPlease check it and input again.');

         confirmloginPassword.focus();

         return false;}







              

    if(inerr(username,"Please input your name. (Example: Peter Chou)")){

        return false;

      }

      

      if ((contain(username.value, "'~!@$%^-_&*=+|}{[];:,?/`%\(\)><")))

      {

       alert("Your name contains invalid characters.");

       username.focus();

       return false;

      }

     







      if(sex.value=='unknown'){

        alert("Please select your gender.");

        sex.focus();

        return false;

      } 





     

         

      if(inerr(city,"Please input your city.")){

        return false;

      }         

          

           

     

      if(inerr(tel,"Please input telephone number.")){

        return false;

      } 



     

      if(inerr(email,"Please input your E-mail.")){

        return false;

      } 





      if (!filter.test(email.value))

          {

          alert('Please input a valid E-mail.');

          email.focus();

          return false;

          }



      

}

}





function check_merID(reg){

with(reg){

     merchantID.value = strim(merchantID.value);



    if(inerr(merchantID,"Please input a Merchant ID.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(merchantID.value)) {

       alert("Your Merchant ID contains invalid character(s). Please check it and login again.");

       merchantID.focus();

       return false;

      }



      if(StrLen(merchantID.value)>20 || StrLen(merchantID.value)<6){

      alert('6 to 20 characters allowed for login ID.');

      merchantID.focus();

      return false;      

      }

      



window.open ('join_check_merID.asp?merID='+merchantID.value+'','','scrollbars=no,resizable=no,menubar=no,width=450,height=110,top=250,left=300');

}

}









function checkQuestionTitle(mr){

with(mr){

     uq_title.value = strim(uq_title.value);



    if(inerr(uq_title,"Please input question title.")){

        return false;

      }



      if ((contain(uq_title.value, "'~@$%^&*=+|}{[]/`%\(\)><")))

      {

       alert("Your question title contains invalid characters.");

       uq_title.focus();

       return false;

      }

}

}









function checkmailbox(studentMsg){

with(studentMsg){

     mb_title.value = strim(mb_title.value);

     sender_name.value = strim(sender_name.value);



    if(inerr(mb_title,"Please input message title.")){

        return false;

      }



      if ((contain(mb_title.value, "'~@$%^&*=+|}{[]/`%\(\)><")))

      {

       alert("Message title contains invalid characters.");

       mb_title.focus();

       return false;

      }



    if(inerr(sender_name,"Please input receiver ID.")){

        return false;

      }



      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(sender_name.value)) {

       alert("Receiver ID contains invalid character(s). Please check it and login again.");

       sender_name.focus();

      return false;

      }



}

}











function check_s_login_ID(reg){

with(reg){

     s_login_id.value = strim(s_login_id.value);



    if(inerr(s_login_id,"Please input login ID.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z\_]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_id.value)) {

       alert("Your login ID contains invalid character(s). Please check it and login again.");

       s_login_id.focus();

      return false;

      }



      if(StrLen(s_login_id.value)>20 || StrLen(s_login_id.value)<6){

      alert('6 to 20 characters allowed for login ID.');

      s_login_id.focus();

      return false;      

      }

      



window.open ('http://www.tlichinaonline.com/Eng/student_check_loginID.asp?s_login_id='+s_login_id.value+'','','scrollbars=no,resizable=no,menubar=no,width=450,height=110,top=250,left=300');



}

}









function checkSmodifyPass(mr){

with(mr){



         s_login_pass.value = strim(s_login_pass.value);

         s_login_pass2.value = strim(s_login_pass2.value);

         s_login_pass3.value = strim(s_login_pass3.value);







      if(inerr(s_login_pass,"Please input your current login password.")){

        return false;

      }

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_pass.value)) {

       alert("Your current login password contains invalid character(s). Please check it and login again.");

       s_login_pass.focus();

      return false;

      }

      

      if(StrLen(s_login_pass.value)>20 || StrLen(s_login_pass.value)<6){

      alert('6 to 20 characters allowed for password.');

      s_login_pass.focus();

      return false;      

      }

      

      if(inerr(s_login_pass2,"Please input new login password.")){

        return false;

      }      

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_pass2.value)) {

       alert("New login password contains invalid character(s). Please check it and login again.");

       s_login_pass2.focus();

      return false;

      }

      

      if(StrLen(s_login_pass2.value)>20 || StrLen(s_login_pass2.value)<6){

      alert('6 to 20 characters allowed for password.');

      s_login_pass2.focus();

      return false;      

      }







      if(inerr(s_login_pass3,"Please input new login password again.")){

        return false;

      }      

      

      var regu = "^[0-9a-zA-Z]+$";

      var re = new RegExp(regu);

      if (!re.test(s_login_pass3.value)) {

       alert("Confirm password contains invalid character(s). Please check it and login again.");

       s_login_pass3.focus();

      return false;

      }

      

      if(StrLen(s_login_pass3.value)>20 || StrLen(s_login_pass3.value)<6){

      alert('6 to 20 characters allowed for password.');

      s_login_pass3.focus();

      return false;      

      }







      if(s_login_pass2.value!=s_login_pass3.value){alert('The confirm password is not same as the new login password.\nPlease check it and input again.');

         s_login_pass3.focus();

         return false;}      

         



}

}







function checkSmodifyForm(reg){

with(reg){

var filter=/^.+@.+\..{2,3}$/

         s_name.value = strim(s_name.value);

         s_nationality.value = strim(s_nationality.value);

         s_sex.value = strim(s_sex.value);                           

         s_tel.value = strim(s_tel.value);

         s_cell.value = strim(s_cell.value);

         s_email.value = strim(s_email.value);



              

    if(inerr(s_name,"Please input your name. (Example: Peter Chou)")){

        return false;

      }

      

      if ((contain(s_name.value, "'~!@$%^-_&*=+|}{[];:,.?/`%\(\)><")))

      {

       alert("Your name contains invalid characters.");

       s_name.focus();

       return false;

      }

       

         

      if(inerr(s_nationality,"Please input your nationality.")){

        return false;

      }         

          

      

      if(s_sex.value=='unknown'){

        alert("Please select your gender.");

        s_sex.focus();

        return false;

      }      

     

      if(inerr(s_tel,"Please input telephone number.")){

        return false;

      } 



      if(inerr(s_cell,"Please input cell phone number.")){

        return false;

      } 

     

     if((s_tel.value=="" || s_tel.value==null) && (s_cell.value=="" || s_cell.value==null)){

        alert('Telephone and cell phone number is required. You have to input at least one.');

        s_tel.focus();

        return false;

     }

     

     

      if(inerr(s_email,"Please input your E-mail.")){

        return false;

      } 





      if (!filter.test(s_email.value))

          {

          alert('Please input a valid E-mail.');

          s_email.focus();

          return false;

          }



  



}

}