diff --git a/public/javascript/ui/panel/ZombieTabs.js b/public/javascript/ui/panel/ZombieTabs.js
index becc582bd..cb5967d41 100644
--- a/public/javascript/ui/panel/ZombieTabs.js
+++ b/public/javascript/ui/panel/ZombieTabs.js
@@ -1,9 +1,11 @@
 ZombieTabs = function(zombie_tree_list) {
 	
-	var tree_items = new Array;
+	//a variable to store the list of trees.
+	this.tree_items = new Array;
 	
+	//we store the list of trees in a correct array format for ExtJs
 	for(tree in zombie_tree_list) {
-		tree_items.push(zombie_tree_list[tree]);
+		this.tree_items.push(zombie_tree_list[tree]);
 	}
 	
 	MainPanel.superclass.constructor.call(this, {
@@ -18,7 +20,7 @@ ZombieTabs = function(zombie_tree_list) {
         minSize: 175,
         maxSize: 400,
 		deferredRender: false,
-		items: tree_items
+		items: this.tree_items
     });
 };
 
diff --git a/public/javascript/ui/panel/ZombiesMgr.js b/public/javascript/ui/panel/ZombiesMgr.js
index 1262180df..321c83451 100644
--- a/public/javascript/ui/panel/ZombiesMgr.js
+++ b/public/javascript/ui/panel/ZombiesMgr.js
@@ -39,13 +39,13 @@ var ZombiesMgr = function(zombies_tree_lists) {
 			//add an offline browser to the tree
 			for(var i in offline_hooked_browsers) {
 				var offline_hooked_browser = this.zombieFactory(i, offline_hooked_browsers);
-				hooked_browsers_tree.addZombie(offline_hooked_browser, false);
+				hooked_browsers_tree.addZombie(offline_hooked_browser, false, ((tree_type != 'basic') ? true : false));
 			}
 			
 			//add an online browser to the tree
 			for(var i in online_hooked_browsers) {
 				var online_hooked_browser = this.zombieFactory(i, online_hooked_browsers);
-				hooked_browsers_tree.addZombie(online_hooked_browser, true);
+				hooked_browsers_tree.addZombie(online_hooked_browser, true, ((tree_type != 'basic') ? true : false));
 				//TODO: add the rules here
 			}
 			
diff --git a/public/javascript/ui/panel/zombiesTreeList.js b/public/javascript/ui/panel/zombiesTreeList.js
index 4e1d7a847..36e4f0041 100644
--- a/public/javascript/ui/panel/zombiesTreeList.js
+++ b/public/javascript/ui/panel/zombiesTreeList.js
@@ -13,6 +13,7 @@ zombiesTreeList = function(id) {
         rootVisible:false,
         lines:false,
         autoScroll:true,
+		useArrows:true,
         root: new Ext.tree.TreeNode('My Zombies'),
         collapseFirst:false
 	});
@@ -72,8 +73,9 @@ Ext.extend(zombiesTreeList, Ext.tree.TreePanel, {
 	 * Adds a new hooked browser to the tree.
 	 * @param: {Literal Object} the hooked browser object generated by the zombie manager.
 	 * @param: {Boolean} true if the hooked browser is online, false if offline.
+	 * 
 	 */
-    addZombie : function(hooked_browser, online) {
+    addZombie : function(hooked_browser, online, checkbox) {
 		var hb_id, mother_node, node;
 		
 		if(online) {
@@ -101,14 +103,15 @@ Ext.extend(zombiesTreeList, Ext.tree.TreePanel, {
         Ext.apply(hooked_browser, {
             iconCls: 'feed-icon',
             leaf:true,
-            id: hb_id
+            id: hb_id,
+			checked: ((checkbox) ? false : null)
         });
         
 		//creates a new node for that hooed browser
 		node = new Ext.tree.TreeNode(hooked_browser);
 		
 		//creates a sub-branch for that HB if necessary
-		mother_node = this.addSubFolder(mother_node, hooked_browser[this.tree_configuration['sub-branch']]);
+		mother_node = this.addSubFolder(mother_node, hooked_browser[this.tree_configuration['sub-branch']], checkbox);
 		
 		if(online) {
 			//add the hooked browser to the online branch
@@ -127,8 +130,9 @@ Ext.extend(zombiesTreeList, Ext.tree.TreePanel, {
 	 * Adds a sub-branch or sub-folder to the tree.
 	 * @param: {Ext.tree.TreeNode} the mother node.
 	 * @param: {String} the name of the new sub branch.
+	 * @param: {Boolean} true if the sub-branch should have a checkbox; false if not.
 	 */
-	addSubFolder: function(mother_node, folder) {
+	addSubFolder: function(mother_node, folder, checkbox) {
 		if(!folder) return mother_node;
 		
 		if(mother_node.hasChildNodes()) {
@@ -141,9 +145,10 @@ Ext.extend(zombiesTreeList, Ext.tree.TreePanel, {
 		} else {
 			sub_folder_node = new Ext.tree.TreeNode({
 				id: 'sub-folder-'+folder,
-				text: folder
+				text: folder,
+				checked: ((checkbox) ? false : null)
 				});
-				
+			
 			mother_node.appendChild(sub_folder_node);
 			mother_node = sub_folder_node;
 		}