hideOrShowFeedsCategory: fix for offline feedlist

functions.js

@@ -855,6 +855,8 @@ function hideOrShowFeedsCategory(id, hide) {
 	
 	//	debug("end cat: " + node.id + " unread " + cat_unread);
 
+		if (cat_node) {
+
 			if (cat_unread == 0) {
 				if (cat_node.style == undefined) {
 					debug("ERROR: supplied cat_node " + cat_node + 
@@ -875,6 +877,7 @@ function hideOrShowFeedsCategory(id, hide) {
 					debug(e);
 				}
 			}
+		}
 
 //	debug("unread for category: " + cat_unread);