feature 2588: new classes to help css personalization.

- on mainpage_categories.tpl
New classes odd & even on .thumbnailCategories LI
- on thumbnails.tpl
class thumbName for $thumbnail.NAME
(if someone wants to hide the thumbnail name, and not the nb comments or hits)

git-svn-id: http://piwigo.org/svn/trunk@14239 68402e56-0260-453c-a942-63ccdbb3a9ee

themes/default/template/mainpage_categories.tpl

@@ -8,8 +8,8 @@
 }
 {/html_style}{/strip}
 <ul class="thumbnailCategories">
-{foreach from=$category_thumbnails item=cat}
-	<li>
+{foreach from=$category_thumbnails item=cat name=cat_loop}
+	<li class="{if $smarty.foreach.comment_loop.index is odd}odd{else}even{/if}">
 		<div class="thumbnailCategory">
 			<div class="illustration">
 			<a href="{$cat.URL}">

themes/default/template/thumbnails.tpl

@@ -34,7 +34,7 @@
 		</span>
 		{if $SHOW_THUMBNAIL_CAPTION }
 		<span class="thumbLegend">
-		{$thumbnail.NAME}
+		<span class="thumbName">{$thumbnail.NAME}</span>
 		{if !empty($thumbnail.icon_ts)}
 		<img title="{$thumbnail.icon_ts.TITLE}" src="{$ROOT_URL}{$themeconf.icon_dir}/recent.png" alt="(!)">
 		{/if}