导航修改

@@ -67,6 +67,7 @@ class HomeModel
         $menu = Cache::get($key);
         if(empty($menu)) {
         	$item = array();
+        	$index_main = 0;
         	foreach ($data['data'] as $val) {
         		$item = array(
         				'name_cn' => $val['sort_name'], // 父级
@@ -74,7 +75,7 @@ class HomeModel
         				'link' => $val['sort_url'],
         				'icon' => $val['sort_ico'],
         				'classname' => str_replace(' ', '', strtolower($val['sort_name_en'])) == $channel ? $channel : '',
-        				'index_main' => 0,
+        				'index_main' => $index_main++,
         				'is_hot' => $val['is_hot'] == 'Y' ? true : false,
         				'is_new' => $val['is_new'] == 'Y' ? true : false,
         				//  'subnav' => array()