set cursor=pointer on feedlist collapse img

functions.php

@@ -4096,7 +4096,7 @@
 			}
 
 			print "<li class=\"feedCat\" id=\"FCAT-$cat_id\">
-				<img onclick=\"toggleCollapseCat($cat_id)\"
+				<img onclick=\"toggleCollapseCat($cat_id)\" class=\"catCollapse\"
 					title=\"".__('Click to collapse category')."\"
 					src=\"images/cat-collapse.png\"><span class=\"$inner_title_class\" 
 					id=\"FCATN-$cat_id\" $browse_cat_link

tt-rss.css

@@ -87,6 +87,10 @@ ul.feedList li.feedCat {
 	font-size : 12px;
 }
 
+ul.feedList li.feedCat img.catCollapse {
+	cursor : pointer;
+}
+
 ul.feedList li.feedCat span.catTitle {
 	color : #707070;
 	cursor : pointer;