JavaScript quine

var quote = '"';
var apostrophe = "'";
var print_out, main;

var ce_code = "function concat_eval (lines) {var l; var c = ''; for (l = 0; l < lines.length; l ++) c = c.concat(lines[l]); return eval(c);}";
eval(ce_code);

var po_code = [
  "print_out = function (variable_name, contents) {",
  "  if ((typeof contents) == 'string') {",
  "    document.writeln('var ', variable_name, ' = ', quote, contents, quote, ';');",
  "    document.writeln('eval(', variable_name, ');');",
  "  } else {",
  "    document.writeln('var ', variable_name, ' = [');",
  "    var current_line;",
  "    for (current_line = 0; current_line < contents.length; current_line ++)",
  "      document.writeln('  ', quote, contents[current_line], quote, (current_line == (contents.length - 1)) ? '' : ',');",
  "    document.writeln('];');",
  "    document.writeln('concat_eval(', variable_name, ');');",
  "  }",
  "  document.writeln();",
  "}"
];
concat_eval(po_code);

var main_code = [
  "main = function () {",
  "  var code_items = ['ce_code', 'po_code', 'main_code'];",
  "  document.writeln('var quote = ', apostrophe, quote, apostrophe, ';');",
  "  document.writeln('var apostrophe = ', quote, apostrophe, quote, ';');",
  "  document.writeln('var print_out, main;');",
  "  document.writeln();",
  "  var code_item;",
  "  for (code_item = 0; code_item < code_items.length; code_item ++)",
  "    print_out(code_items[code_item], eval(code_items[code_item]));",
  "  document.writeln('main();');",
  "}"
];
concat_eval(main_code);

main();