UI_4PM/multiLevelConditions.html at master · Sharma-NareshIT/UI_4PM · GitHub

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<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.css">
        <script>
          var userDetails = {
              CardNo: "5555666688887777",
              Year:"2019",
              Cvv:"3344"
          };
          function VerifyCard() {
              window.cardnumber = document.getElementById("txtCard").value;
              if(userDetails.CardNo==cardnumber) {
                  document.getElementById("lstYear").disabled=false;
              }
          }
          function VerifyYear(){
              window.year = document.getElementById("lstYear").value;
              if(userDetails.Year==year) {
                  document.getElementById("txtCvv").disabled=false;
              }
          }
          function VerifyCvv(){
              window.cvv = document.getElementById("txtCvv").value;
              if(userDetails.Cvv==cvv) {
                  document.getElementById("btnPay").disabled=false;
              }
          }
          function PayClick(){
             var msg = document.getElementById("msg");
             msg.className="text-danger";
             if(cardnumber==userDetails.CardNo){
                if(year==userDetails.Year) {
                    if(cvv==userDetails.Cvv){
                        document.write("Payment Successfull..");
                    } else {
                        msg.innerHTML="Invalid CVV";
                    }
                } else {
                    msg.innerHTML="Invalid Year";
                }
             } else {
                 msg.innerHTML="Invalid Card Number";
             }
          }
        </script>
    </head>
    <body>
        <div class="container">
            <fieldset>
                <legend class="text-primary">Payment Details</legend>
                <dl>
                    <dt>Card Number</dt>
                    <dd><input type="text" id="txtCard" class="form-control" onkeyup="VerifyCard()"></dd>
                    <dt>Expiry Year</dt>
                    <dd>
                        <select disabled id="lstYear" class="form-control" onchange="VerifyYear()">
                            <option>2019</option>
                            <option>2020</option>
                            <option>2021</option>
                        </select>
                    </dd>
                    <dt>CVV</dt>
                    <dd>
                        <input disabled type="text" id="txtCvv" class="form-control" onkeyup="VerifyCvv()">
                    </dd>
                </dl>
                <button id="btnPay" disabled class="btn btn-primary" onclick="PayClick()">Pay</button>
            </fieldset>
            <div class="form-group text-center">
                <h3 id="msg"></h3>
            </div>
        </div>
    </body>
</html>