<!DOCTYPE html>
<html>
<head>
  <style>
    .text {
      font-family: courier;
      font-size: 12px;
      padding: 0px;
      margin: 0px;
      border: 0px;
    }
  </style>
</head>
<body>
<textarea id='target' class="text" type='text' rows="3" cols="20">
First Line
Second Text Row
</textarea>
<script>
    function selectCaret() {
        var text = document.getElementById('target');
        text.focus();
        text.setSelectionRange(17, 17);
    }
    function selectRange() {
        var text = document.getElementById('target');
        text.focus();
        text.setSelectionRange(1, 3);
    }
</script>
</body>
</html>