index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Generate Bill</title>
    <script src="js/util.js"></script>
</head>

<body>
    <label for="invoiceNumber">Invoice Number:</label>
    <input type="text" name="invoiceNumber" id="invoiceNumberInput">
    <br>
    <label for="dateInput">Select Date</label>
    <input type="date" name="dateInput" id="dateInput">
    <br>
    <label for="partyName">Party Name:</label>
    <input type="text" name="partyName" id="partyNameInput">
    <br>
    
    <label for="gstn">GSTN:</label>

    <input type="text" name="gstn" id="gstnInput">
    <br>
    <label for="gstRate">Select GST Rate</label><br>
    <input type="radio" name="gstRate" value="5" id = "rate_5"> 5%<br>
    <input type="radio" name="gstRate" value="12"id = "rate_12"> 12%<br>
    <input type="radio" name="gstRate" value="18"id = "rate_18"> 18%<br>
    <input type="radio" name="gstRate" value="28"id = "rate_28"> 28%<br>
    <!-- <img src="download.jpg" alt=""> -->
    <label for="amount">Amount:</label>
    <input type="text" name="amount" id="amountInput">
    <br>
    <label for="totalAmount">Total Amount</label>
    <input type="text" name="totalAmount" id="totalAmountInput">
    <br>

    <button id="calculateButton" onclick="calculate()">Calculate</button>


</body>

</html>