In Magento i have added categories and subcategories,these will be displayed in home page of my website.
Now, I want to display subcategories along with respective image. But I do not want to use any extensions provided by Magento.
Below snapshot shows how my dropdown menu looks, but i want to add image to respective category. 
This is the code which i have added in renderer.phtml app/design/frontend/rwd/default/template/page/html/topmenu
<?php $html = ''; $children = $menuTree->getChildren(); $parentLevel = $menuTree->getLevel(); $childLevel = is_null($parentLevel) ? 0 : $parentLevel + 1; $counter = 1; $childrenCount = $children->count(); $parentPositionClass = $menuTree->getPositionClass(); $itemPositionClassPrefix = $parentPositionClass ? $parentPositionClass . '-' : 'nav-'; foreach ($children as $child) { $child->setLevel($childLevel); $child->setIsFirst($counter == 1); $child->setIsLast($counter == $childrenCount); $child->setPositionClass($itemPositionClassPrefix . $counter); $outermostClassCode = 'level'. $childLevel; $_hasChildren = ($child->hasChildren()) ? 'has-children' : ''; $html .= '<li '. $this->_getRenderedMenuItemAttributes($child) .'>'; $html .= '<a href="'. $child->getUrl() .'" class="'. $outermostClassCode .' '. $_hasChildren .'">'. $this->escapeHtml($this->__($child->getName())) .'</a>'; if (!empty($childrenWrapClass)) { $html .= '<div class="'. $childrenWrapClass .'">'; } $nextChildLevel = $childLevel + 1; if (!empty($_hasChildren)) { $html .= '<ul class="level'. $childLevel .'">'; $html .= '<li class="level'. $nextChildLevel .' view-all">'; $html .= '<a class="level'. $nextChildLevel .'" href="'. $child->getUrl() .'">'; $html .= $this->__('View All') . ' ' . $this->escapeHtml($this->__($child->getName())); $html .= '</a>'; $html .= '</li>'; $html .= $this->render($child, $childrenWrapClass); $html .= '</ul>'; } if (!empty($childrenWrapClass)) { $html .= '</div>'; } $html .= '</li>'; $counter++; } return $html; and following code i have added in app/design/frontend/rwd/default/template/page/html/topmenu.phtml
<?php $_menu = $this->getHtml('level-top') ?> <?php if($_menu): ?> <nav id="nav"> <ol class="nav-primary"> <?php echo $_menu ?> </ol> </nav> <?php endif ?> and also i have added following code in app/etc/modules/WP_customMenu.xml to display the category list in customized form
<?xml version="1.0"?> <config> <modules> <WP_CustomMenu> <active>true</active> <codePool>community</codePool> </WP_CustomMenu> </modules> </config>