Magento Sort Category And Sub-category in Alphabetically Order.

Hello all now you can sort category and its sub-categories in alphabetically order without changes in core file.
copy and past following code in any phtml file.

<?php
$cats = Mage::getModel('catalog/category')->load(2)->getChildren();
$catIds = explode(',', $cats);
$categories = array();
$subCategories = array();
foreach ($catIds as $catId) {
    $category = Mage::getModel('catalog/category')->load($catId);
    $categories[$category->getName()] = $category->getUrl();

    $subcats = Mage::getModel('catalog/category')->load($catId)->getChildren();
    $subcatIds = explode(',', $subcats);
    if ($subcats) {
        foreach ($subcatIds as $subcatId) {
            $subCategory = Mage::getModel('catalog/category')->load($subcatId);
            $subCategories[$category->getName()][$subCategory->getName()] = $subCategory->getUrl();
        }
        ksort($subCategories[$category->getName()], SORT_STRING);
    }
}
ksort($categories, SORT_STRING);
?>                               
<div id="leftmenu" class="block block-nav">
<div class="block-title"><strong><span>Kunstnerartikler</span></strong></div>
<div class="block-content">
     <ul>
    <?php foreach ($categories as $name => $url): ?>
     <li>
         <?php $_category = Mage::getModel('catalog/category')->loadByAttribute('name',$name); ?>
         <?php if($_category->getChildren()) { ?>
          <div class="navhead"><p class="cursor"><?php echo $name; ?> </div>
         <?php }  else { ?>
          <div class="navhead2"><p>
          <a href="<?php echo $url; ?>"><?php echo $name; ?></a>
              </p>
          </div>
         <?php } ?>
         <?php foreach ($subCategories as $key => $values) { if($name == $key) { echo '';  ?>
         <div class="navcontent">
        <ul>
       <?php foreach($values as $subName => $subUrl) { ?>
    <li class="menusub lige"><strong>&bull;
        <a href="<?php echo $subUrl ?>" >
            <?php echo $subName; ?>
        </a>
        </strong>
    </li>
        <?php }
        ?>        </ul>
      </div> <?php
        echo ""; } } ?>
     </li>
    <?php endforeach; ?>
     </ul>
    </div>
</div>