Method displayCategoryExtImgOrFolder

/*
 * BACK FOLDER - CATEGORY VIEW
 */
/*
	public static function displayBackFolder ($size, $rightDisplayKey) {

		$fileThumbnail = new CMSObject;

		// if category is not accessable, display the key in the image:
		$key = '';
		if ((int)$rightDisplayKey == 0) {
			$key = '-key';
		}

		phocagalleryimport('phocagallery.image.image');
		phocagalleryimport('phocagallery.path.path');
		$path				= PhocaGalleryPath::getPath();
		$fileThumbnail->abs = '';
		$paramsC 			= ComponentHelper::getParams('com_phocagallery') ;

		if ( $paramsC->get( 'image_background_shadow' ) != 'None' ) {
			$fileThumbnail->rel	= $path->image_rel_front . 'icon-up-images'.$key.'.png';
		} else {
			$fileThumbnail->rel	= $path->image_rel_front . 'icon-up-images'.$key.'.png';
		}

		return $fileThumbnail->rel;
	}*/
/*
 * IMAGE OR FOLDER - CATEGORY VIEW - EXTERNAL IMAGE
 */
public static function displayCategoryExtImgOrFolder($extS, $extM, $size, $rightDisplayKey, $param = 'display_category_icon_image')
{
    phocagalleryimport('phocagallery.image.image');
    phocagalleryimport('phocagallery.path.path');
    $paramsC = ComponentHelper::getParams('com_phocagallery');
    $path = PhocaGalleryPath::getPath();
    $fileThumbnail = new CMSObject();
    $fileThumbnail->extm = $extM;
    $fileThumbnail->exts = $extS;
    $fileThumbnail->linkthumbnailpath = $extS;
    // in case external image doesn't exist or the category is locked
    $displayCategoryIconImage = $paramsC->get($param, 0);
    $imageBackgroundShadow = $paramsC->get('image_background_shadow', 'None');
    // if category is not accessable, display the key in the image:
    $key = '';
    if ((int) $rightDisplayKey == 0) {
        $key = '-key';
    }
    //Thumbnail_file doesn't exists or user wants to display folder icon
    $fileThumbnail->extpic = true;
    if ($size == 'medium') {
        if ($extM == '' || (int) $rightDisplayKey == 0 || $displayCategoryIconImage != 1) {
            if ($imageBackgroundShadow != 'None') {
                $fileThumbnail->linkthumbnailpath = $path->image_rel_front . 'icon-folder-medium' . $key . '.png';
            } else {
                $fileThumbnail->linkthumbnailpath = $path->image_rel_front . 'icon-folder-medium' . $key . '.png';
            }
            $fileThumbnail->extpic = false;
        }
    }
    if ($size == 'small') {
        if ($extS == '' || (int) $rightDisplayKey == 0 || $displayCategoryIconImage != 1) {
            if ($imageBackgroundShadow != 'None') {
                $fileThumbnail->linkthumbnailpath = $path->image_rel_front . 'icon-folder-small' . $key . '.png';
            } else {
                $fileThumbnail->linkthumbnailpath = $path->image_rel_front . 'icon-folder-small' . $key . '.png';
            }
            $fileThumbnail->extpic = false;
        }
    }
    return $fileThumbnail;
}