Groups examples and some boolean checks corrected

examples/groups/bring to top.php

@@ -0,0 +1,46 @@
+ 
+ <?php
+    $title = "Bring to Top using parent container";
+    require('../head.php');
+?>
+
+<script type="text/javascript">
+
+(function () {
+
+    var game = new Phaser.Game(800, 600, Phaser.CANVAS, '', { preload: preload, create: create,render : render });
+
+    var container;
+
+    function preload() {
+        game.load.spritesheet('button', 'assets/buttons/number-buttons.png', 160, 160);
+        
+    }
+    function create() {
+        // Container for sorting the buttons, which we'll use to make buttons
+        // to the top later.
+        container = game.add.group();
+
+        // Add buttons to container.
+        container.add(game.add.button(200, 100, 'button', bringMeToTop, this, 0, 0, 0));
+        container.add(game.add.button(300, 100, 'button', bringMeToTop, this, 1, 1, 1));
+        container.add(game.add.button(100, 200, 'button', bringMeToTop, this, 2, 2, 2));
+        container.add(game.add.button(400, 200, 'button', bringMeToTop, this, 3, 3, 3));
+        container.add(game.add.button(300, 300, 'button', bringMeToTop, this, 4, 4, 4));
+        container.add(game.add.button(200, 300, 'button', bringMeToTop, this, 5, 5, 5));
+    }
+    function render() {
+
+       game.debug.renderText('Tap or click buttons to bring it to the top.', 32, 32);
+    }
+    function bringMeToTop(btn) {
+        container.bringToTop(btn);
+    }
+
+})();
+
+</script>
+
+<?php
+    require('../foot.php');
+?>