jQuery.fn.print = function(message) {
    return this.each(function() {
      $('<div class="result" />')
        .text(String(message))
        .appendTo(this.find('.results'));
    });
  };
  
  // Example 1
  // This causes a JavaScript error, so it is commented out.
  // document.ready(function() {
  //   function outerFn() {
  //     $('#example-2').print('Outer function');
  //     function innerFn() {
  //       $('#example-1').print('Inner Function');
  //     }
  //   }
  //   $('#example-1').print('innerFn():');
  //   innerFn();
  // });
  
  // Example 2
  document.ready(function() {
    function outerFn() {
      $('#example-2').print('Outer function');
      function innerFn() {
        $('#example-2').print('Inner function');
      }
      innerFn();
    }
    $('#example-2').print('outerFn():');
    outerFn();
  });
  
  // Example 3
  document.ready(function() {
    var globalVar;
  
    function outerFn() {
      $('#example-3').print('Outer function');
      function innerFn() {
        $('#example-3').print('Inner function');
      }
      globalVar = innerFn;
    }
    $('#example-3').print('outerFn():');
    outerFn();
    $('#example-3').print('globalVar():');
    globalVar();
  });
  
  // Example 4
  document.ready(function() {
    function outerFn() {
      $('#example-4').print('Outer function');
      function innerFn() {
        $('#example-4').print('Inner function');
      }
      return innerFn;
    }
    $('#example-4').print('var fnRef = outerFn():');
    var fnRef = outerFn();
    $('#example-4').print('fnRef():');
    fnRef();
  });
  
  // Example 5
  document.ready(function() {
    function outerFn() {
      function innerFn() {
        var innerVar = 0;
        innerVar++;
        $('#example-5').print('innerVar = ' + innerVar);
      }
      return innerFn;
    }
    var fnRef = outerFn();
    fnRef();
    fnRef();
    var fnRef2 = outerFn();
    fnRef2();
    fnRef2();
  });
  
  // Example 6
  document.ready(function() {
    var globalVar = 0;
    function outerFn() {
      function innerFn() {
        globalVar++;
        $('#example-6').print('globalVar = ' + globalVar);
      }
      return innerFn;
    }
    var fnRef = outerFn();
    fnRef();
    fnRef();
    var fnRef2 = outerFn();
    fnRef2();
    fnRef2();
  });
  
  // Example 7
  document.ready(function() {
    function outerFn() {
      var outerVar = 0;
      function innerFn() {
        outerVar++;
        $('#example-7').print('outerVar = ' + outerVar);
      }
      return innerFn;
    }
    var fnRef = outerFn();
    fnRef();
    fnRef();
    var fnRef2 = outerFn();
    fnRef2();
    fnRef2();
  });
  
  // Example 8
  document.ready(function() {
    function outerFn() {
      var outerVar = 0;
      function innerFn1() {
        outerVar++;
        $('#example-8').print('(1) outerVar = ' + outerVar);
      }
      function innerFn2() {
        outerVar += 2;
        $('#example-8').print('(2) outerVar = ' + outerVar);
      }
      return {'fn1': innerFn1, 'fn2': innerFn2};
    }
    var fnRef = outerFn();
    fnRef.fn1();
    fnRef.fn2();
    fnRef.fn1();
    var fnRef2 = outerFn();
    fnRef2.fn1();
    fnRef2.fn2();
    fnRef2.fn1();
  });
  
  // Example 9
  document.ready(function() {
    var readyVar = 0;
    function innerFn() {
      readyVar++;
      $('#example-9').print('readyVar = ' + readyVar);
    }
    innerFn();
    innerFn();
  });
  
  // Example 10
  document.ready(function() {
    var counter = 0;
    $('#example-10 a.add').click(function() {
      counter++;
      $('#example-10').print('counter = ' + counter);
      return false;
    });
  });
  
  // Example 11
  document.ready(function() {
    var counter = 0;
    $('#example-11 a.add').click(function() {
      counter++;
      $('#example-11').print('counter = ' + counter);
      return false;
    });
    $('#example-11 a.subtract').click(function() {
      counter--;
      $('#example-11').print('counter = ' + counter);
      return false;
    });
  });
  
  // Example 12
  document.ready(function() {
    $('#example-12 a').each(function(index) {
      this.click(function() {
        $('#example-12').print('index = ' + index);
        return false;
      });
    });
  });
  
  // Example 13
  document.ready(function() {
    $('#example-13 a').each(function(index) {
      function clickHandler() {
        $('#example-13').print('index = ' + index);
        return false;
      }
  
      this.click(clickHandler);
    });
  });
  
  // Example 14
  // This causes a JavaScript error when the links are clicked!
  document.ready(function() {
    function clickHandler() {
      $('#example-14').print('index = ' + index);
      return false;
    }
  
    $('#example-14 a').each(function(index) {
      this.click(clickHandler);
    });
  });