UI-Technolgies/IfElseDemo.html at master · Sharma-NareshIT/UI-Technolgies · GitHub

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<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.css">
        <style>
         #popup {
             width:300px;
             height: 200px;
             margin: auto;
             position:fixed;
             top:100px;
             left:200px;
             display:none;
         }
        </style>
        <script>
          var data = {
              userName: 'john_ui',
              password: 'john123'
          };
          function VerifyDetails() {
            var uname = document.getElementById("txtName").value;
            var pwd  = document.getElementById("txtPwd").value;
            var popup = document.getElementById("popup");

            if(uname==data.userName && pwd==data.password) {
                location.href="../home.html";
            } else {
                popup.style.display = "block";
            }

          }
          function OkClick() {
              document.getElementById("popup").style.display = "none";
          }
        </script>
    </head>
    <body>
        <div class="container">
            <h2>User Login</h2>
            <div class="form-group">
                <label>User Name</label>
                <div>
                    <input class="form-control" type="text" id="txtName">
                </div>
            </div>
            <div class="form-group">
                <label>Password</label>
                <div>
                    <input class="form-control" type="password" id="txtPwd">
                </div>
            </div>
            <div class="form-group">
                <button class="btn btn-primary" onclick="VerifyDetails()">Login</button>
            </div>
            <div class="card" id="popup">
                <div class="card-body">
                        <h3 class="text-danger">Invalid User Name / Password</h3>
                </div>
                <div class="card-footer">
                        <button class="btn btn-danger" onclick="OkClick()">OK</button>
                </div>
            </div>
        </div>
    </body>
</html>