gistfile1.txt

 $store = Mage::app()->getStore();
        $rootId     = Mage::app()->getStore($store->getId())->getRootCategoryId();
        
       // $cat = Mage::getModel('catalog/category')->load(814);

       try{
           $layer = Mage::getModel("catalog/layer");
           $category = Mage::getModel("catalog/category")->load(1183); // 3rd Category
           $layer->setCurrentCategory($category);
           $attributes = $layer->getFilterableAttributes();
           foreach ($attributes as $attribute) {
                echo $attribute->getAttributeCode(); echo "<br>";
               if ($attribute->getAttributeCode() == 'price') {
                   $filterBlockName = 'catalog/layer_filter_price';
               } elseif ($attribute->getBackendType() == 'decimal') {
                   $filterBlockName = 'catalog/layer_filter_decimal';
               } else {
                   $filterBlockName = 'catalog/layer_filter_attribute';
               }
               $result = Mage::app()->getLayout()->createBlock($filterBlockName)->setLayer($layer)->setAttributeModel($attribute)->init();
               
               foreach($result->getItems() as $option) {
                    
                   $count[] = array('attribute_name' => $option->getLabel(),'attribute_value' => $option->getValue());
               }
               if($count!=null){
                   $json[] = array(
                    'code'=>$attribute->getAttributeCode(),
                    'name'=>ucfirst($attribute->getName()),
                    'count'=>$count
                    );
               }
               unset($count);
           }
       }
       catch (Exception $e) {
           $json = array('status' => false, 'message' => $e->getMessage());
       }

       $html = NULL;
       foreach ($json as $layeredNav) {
        $html = "<li><a href='#'>" . $layeredNav['name'] . "</a></li>";
        $html .= "<ul>";
            foreach ($layeredNav['count'] as $key => $value) {
                $html .= "<li><a href='/?price=".$value['attribute_value']."'>" . $value['attribute_name'] . "</a></li>";
            }
       }
         
       echo "<pre>";
       print_r($html);
       echo "</pre>";
       exit;