js模擬銀行卡賬號輸入

 

           <script language="javascript" type="text/javascript"> 
          
 
          function www_zzjs_net (BankNo) 
          
{ 
          
 
          if (BankNo.value == "")  
          return; 
          
 
          var account =  
          new String (BankNo.value); 
          
account = account.substring(0,22);  
          /* 
          帳號的總數, 包括空格在內  
          */ 
          
 
          if (account.match (".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}") ==  
          null) 
          
{ 
          
 
          /* 
           對照格式  
          */ 
          
 
          if (account.match (".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}|" + ".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}|" + 
          
".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}|" + ".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}") ==  
          null) 
          
{ 
          
 
          var accountNumeric = accountChar = "", i; 
          
 
          for (i=0;i<account.length;i++) 
          
{ 
          
accountChar = account.substr (i,1); 
          
 
          if (!isNaN (accountChar) && (accountChar != " ")) accountNumeric = accountNumeric + accountChar; 
          
} 
          
account = ""; 
          
 
          for (i=0;i<accountNumeric.length;i++) 
          
{  
          /* 
           可將以下空格改為-,效果也不錯  
          */ 
          
 
          if (i == 4) account = account + "-";  
          /* 
           帳號第四位數后加空格  
          */ 
          
 
          if (i == 8) account = account + "-";  
          /* 
           帳號第八位數后加空格  
          */ 
          
 
          if (i == 12) account = account + "-"; 
          /* 
           帳號第十二位后數后加空格  
          */ 
          
account = account + accountNumeric.substr (i,1) 
          
} 
          
} 
          
} 
          
 
          else 
          
{ 
          
account = " " + account.substring (1,5) + " " + account.substring (6,10) + " " + account.substring (14,18) + "-" + account.substring(18,25); 
          
} 
          
 
          if (account != BankNo.value) BankNo.value = account; 
          
} 
          
 
          function checkBankNo (BankNo) 
          
{ 
          
 
          if (BankNo.value == "")  
          return; 
          
 
          if (BankNo.value.match (".[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{7}") ==  
          null) 
          
{ 
          
 
          if (BankNo.value.match ("[0-9]{19}") !=  
          null) 
          
www_zzjs_net (BankNo) 
          
}} 
          
 
          function checkEnterForFindListing(e){ 
          
 
          var characterCode; 
          
 
          if(e && e.which){ 
          
e = e; 
          
characterCode = e.which ; 
          
} 
          
 
          else{ 
          
e = event; 
          
characterCode = e.keyCode; 
          
} 
          
 
          if(characterCode == 22){ 
          
document.forms[getNetuiTagName("findListingForm")].submit(); 
          
 
          return  
          false; 
          
} 
          
 
          else{ 
          
 
          return  
          true ; 
          
}} 
          
</script> 
          
<a href="http://www.zzjs.net/"></a>hr> 
          
只能輸入數字，並且每輸入4位數字會增加一個 - <br /> 
          
<input type="text" value="" size="25" onkeyup="www_zzjs_net(this)" onkeydown="www_zzjs_net(this)" name="account" id="account">