How to get current category's image on template file in magento-1.9 on same category page? -

i want add .phtml template file on category page using xml.

i have tried below code note success.

 <catalog_category_default>     <reference name="header">         <block type="catalog/category_view" as="catalog_category_banner" name="catalog.category.banner" template="catalog/category/category-header.phtml"/>     </reference>            </catalog_category_default> 

and in header.phtml file below line.

<?php echo $this->getchildhtml('catalog_category_banner'); ?> 

thanks in advance

<default>     <reference name="header">         <block type="catalog/category_view" as="catalog_category_banner" name="catalog.category.banner" template="catalog/category/category-header.phtml"/>     </reference>            </default>  in header.phtml use $this->getchildhtml('catalog_category_banner');