银行卡验证

来源：互联网发布：js数据结构编辑：程序博客网时间：2024/04/28 14:02

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>

<BODY>
<form name="Reservations" method="post" action="asp_mysql.asp" onsubmit='return check_if_valid()' target='_blank'>
<table>
 <tr><td colspan='2'>
 </td></tr>
 <tr>
 <td colspan="2">
 
 Credit Card Information (* Required)
 To
 confirm your reservation please fill in your credit card information.
  
 </td>
 </tr>
 <tr>
 <td width="44%">Card
 Type:*</td>
 <td width="56%">
 <select name="Card Type" id='cardtype'>
 <option value="">-Please Select Card Type-</option>
 <option value="VISA" >VISA</option>
 <option value="MasterCard">MasterCard</option>
 <option value="American Express">American Express</option>
 </select>
 </td>
 </tr>
 <tr>
 <td width="44%">Card
 Number(no blank):*</td>
 <td width="56%">
 <input type="text" name="Card Number" id='cardnumber'>
 </td>
 </tr>
 <tr>
 <td width="44%"><a href="#">Card
 CCID</a>:*</td>
 <td width="56%">
 <input type="text" name="CCID" maxlength="5" size="5" id='ccid'>
 </td>
 </tr>
 <tr>
 <td width="44%">Card
 Expiry Date(m/y):*</td>
 <td width="56%">
 <input type="text" name="Expiry Month" size="2" maxlength="2" id='expirymonth'>
 /
 <input type="text" name="Expiry Year" size="2" maxlength="2" id='expiryyear'>
 </td>
 </tr>
 <tr>
 <td colspan="2">
 <div align="left">
 <input type="submit" name="Submit Reservation Form" value="Submit Reservation Form">
 </div>
 </td>
 </tr>
 </table>
 </form>
</BODY>
</HTML>
<script language='javascript'>
function check_if_valid()
{
//Card Type and number
if(document.getElementById('cardtype').value=="")
{
// alert("null");
 document.getElementById('validinfo').innerHTML="Please select the Card Type.";
 document.getElementById('cardtype').focus();
 return false;
}
else
{
 var type=document.getElementById('cardtype').value;
 var value=document.getElementById('cardnumber').value;
 if(value!="")
 {
 switch(type)
 {
 case "VISA":
 var valid=/^(?:(?:[4])(?:/d{12}|/d{15}))$/;
 break;
 case "MasterCard":
 var valid=/^(?:(?:[5][1-5])(?:/d{14}))$/;
 break;
 case "American Express":
 var valid=/^(?:(?:[3][4|7])(?:/d{13}))$/;
 break;
 }
 if(!valid.test(value))
 {
 document.getElementById('validinfo').innerHTML="Please input valid Card Number";
 document.getElementById('cardnumber').focus();
 return false;
 }
 }
 else
 {
 document.getElementById('validinfo').innerHTML="Please input the Card Number";
 document.getElementById('cardnumber').focus();
 return false;
 }
}

//ccid
if(document.getElementById('ccid').value=="")
{
 document.getElementById('validinfo').innerHTML="Please input CCID.";
 document.getElementById('ccid').focus();
 return false;
}
else
{
 var value=document.getElementById('ccid').value;
 var valid=/^/d{3}$/;
 if(!valid.test(value))
 {
 document.getElementById('validinfo').innerHTML="Please input valid CCID";
 document.getElementById('ccid').focus();
 return false;
 }
}

//month
if(document.getElementById('expirymonth').value=="")
{
 document.getElementById('validinfo').innerHTML="Please input Card Expiry Date(month)";
 document.getElementById('expirymonth').focus();
 return false;
}
else
{
 var value=document.getElementById('expirymonth').value;
 var valid2=/^1[0-2]$/;
 var valid=/^[0]{0,1}[1-9]$/;
 if(!valid.test(value))
 {
 if(!valid2.test(value))
 {
 document.getElementById('validinfo').innerHTML="Please input valid Card Expiry Date(month)";
 document.getElementById('expirymonth').focus();
 return false;
 }
 }

}

//year
if(document.getElementById('expiryyear').value=="")
{
 document.getElementById('validinfo').innerHTML="Please input Card Expiry Date(year)";
 document.getElementById('expiryyear').focus();
 return false;
}
else
{
 var value=document.getElementById('expiryyear').value;
 var valid=/^/d{2}$/;
 if(!valid.test(value))
 {
 document.getElementById('validinfo').innerHTML="Please input valid Card Expiry Date(year)";
 document.getElementById('expiryyear').focus();
 return false;
 }
}
return true;
}
</script>

银行卡 验证

银行卡验证