how to display thumbnail from category using getThumbnailUrl() in Magento

Question

I have bee trying to make this work but had no luck, Basically I need to display the main menu categories on the content block and I did, but now I need to display the thumbnail

Answer 1

There is no need to change app/code/local/Mage/Catalog/Model/Category.php

It can be done easily through these line of code...try this...Its Works

$child= Mage::getSingleton('catalog/layer')->getCurrentCategory()->getId();

$imageSrc = Mage::getModel('catalog/category')->load($child)->getThumbnail();

$ThumbnailUrl = Mage::getBaseUrl('media').'catalog/category/'.$imageSrc;

echo "";