A copy of the JavaScript functions:

// sample-4-case.js
// This sample shows String case and string methods

function display()
  {
  var output1 = document.getElementById("output1");
  var output2 = document.getElementById("output2");
  var output3 = document.getElementById("output3");
  var output4 = document.getElementById("output4");
  var output5 = document.getElementById("output5");

  // String object
  my_string_object = new String("Zebra");

  output1.value = my_string_object.toLowerCase();
  output2.value = my_string_object.toUpperCase();

  // The following produce the same result
  output3.value = my_string_object;            // implicit conversion
  output4.value = my_string_object.toString();
  output5.value = my_string_object.valueOf();
  }