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<?php
 // get category attribute value
$categories = Mage::getModel('catalog/category')->getCollection()->addAttributeToSelect('*');
$process = Mage::getModel('index/process')->load(5);   $process->reindexAll();
$process = Mage::getModel('index/process')->load(6);    $process->reindexAll();
foreach ($categories as $category) {
$cat = Mage::getModel("catalog/category")->load($category->getId());
     if($cat->getIs_homepage() == 1){ // Category attribute code (is_homepage or getIs_homepage);
         echo $cat->getName();  // category name
         echo $cat->getImageUrl();  // category image url
     }
   }
?>