gui not closing

[oldnag]

ok hereis the code and when i click the close button nothing happens

-- show the interface 
function showMiningUI   (   ) 
        miningUI = guiCreateWindow(773, 426, 399, 205, "Mining", false) 
        guiWindowSetSizable(miningUI, false) 
        guiSetVisible (miningUI,false) 
        guiSetAlpha(miningUI, 1.00) 
        guiSetProperty(miningUI, "CaptionColour", "FF2FFF00") 
  
        bStartMining = guiCreateButton(11, 121, 376, 66, "Start Mining", false, miningUI) 
        bCancelMining = guiCreateButton(359, 26, 18, 15, "x", false, miningUI) 
  
        guiSetProperty(bStartMining, "NormalTextColour", "FF2FFF00") 
        guiSetProperty(bMiningCancel, "NormalTextColour", "FFFD0102") 
  
  
        helpText = guiCreateLabel(10, 31, 362, 112, "To start mining just click the button below and wait until your \ncharacter stops gathering to do it again. To abort current task \njust click on the \"x\" at the top right of the UI", false, miningUI)   
  
        addEventHandler("onClientGUIClick", bStartmining, startMining) 
        addEventHandler("onClientGUIClick", bcancelMining, cancelMining) 
    end 
  
showMiningUI (      ) 
  
addEvent('showMiningUI',true) 
addEventHandler ( 'showMiningUI',root, 
    function (      )    
        guiSetVisible (miningUI,true) 
    end 
) 
-- close button 
function cancelMining(button, state) 
    if (source==bCancelMining) and (button=="left") and (state=="up") then 
        guiSetInputEnabled(false) 
        destroyElement(miningUI) 
        miningUI, bCancelMining, bStartMining = nil, nil, nil 
        removeEventHandler("onClientGUIClick", getRootElement(), cancelMining) 
    end 
end 
  

[Zango]

Small typo on line 19. (bcancelMining)

It's useful to use the debug console, as this would yield a warning.

You have a typo on line 13 as well. bMiningCancel.

Line 18 bStartmining

Happy scripting