Removed sytax errors

ExpCore/GuiParts/center.lua

@@ -14,9 +14,10 @@ function center.add(obj)
     if not is_type(obj,'table') then return end    
     if not is_type(obj.name,'string') then return end 
     setmetatable(obj,{__index=center._center})
-    self.tabs = {}
+    obj.tabs = {}
+    obj._tabs = {}
     Gui._add_data('center',obj.name,obj)
-    toolbar.add(obj.name,obj.caption,obj.tooltip,obj.open)
+    Gui.toolbar.add(obj.name,obj.caption,obj.tooltip,obj.open)
     return obj
 end
 
@@ -82,7 +83,7 @@ end
 
 function center._center:add_tab(name,caption,tooltip,callback)
     self._tabs[self.name..'_'..name] = callback
-    self.tabs[name] = Gui.inputs.inputs.add{
+    self.tabs[name] = Gui.inputs.add{
         type='button',
         name=self.name..'_'..name,
         caption=caption,

control.lua

@@ -41,4 +41,15 @@ require('/ExpCore/ranks')
 -- this loads any edits that are not need in core pcall as file may not be preset
 pcall(require,'/Addons/playerRanks')
 -- this makes sure that all the little details are cleaned up
-Ranking._auto_edit_ranks()
+Ranking._auto_edit_ranks()
+
+-- testing the center gui
+center.add{
+    name='test-center',
+    caption='Gui Center',
+    tooltip='Just a gui test'
+}:add_tab('tab-1','Tab 1','Just a tab',function(frame)
+    frame.add{type='lable',caption='Test'}
+end):add_tab('tab-2','Tab 2','Just a tab',function(frame)
+    frame.add{type='lable',caption='Test 2'}
+end)