Untitled

<html>
<head>
<title>MY WEBPAGE</title>
</head>
<body>
<script>
  function submitFunction()
  {
    var x = document.forms["myform"]["username"].value;
    var y = document.forms["myform"]["pwd"].value;
    if(x == null || x == "" || y == null || y == "")
    {
      alert("Both fields can't be empty.");
    }
    else if(x == "Srinivas")
    {
      if(y=="7899008899")
      {
        alert("Login Successfull.");
        return true;
      }
      else {
        alert("Password do not match");
        return false;
      }
    }
    else {
      alert("User don't match");
      return false;
    }
  </script><form name="myform" action="index.html"                                            onsubmit="submitFunction()",method="post">
  Username: <input type="text" name="username"><br>
  Password:<input type="password" name="pwd"><br>
  <input type=  "submit" value="Submit">
  </form>
  </body>
  </html>