The Menu dont accept the key 28

selected = 1
maxEintrag = 3
selectedsymbol = ">>"
reboot = false
pressedOk = 0
term.clear()
local menuEintrage = {"a","b","Exit","d","e"}
function draw()

x = 1
term.clear()
term.setCursorPos(1,1)
while x < maxEintrag + 1 do
if selected == x then
term.setCursorPos(1,x)
print(string.format("%s%s",selectedsymbol,menuEintrage[x]))
else
term.setCursorPos(3,x)
print(menuEintrage[x])
end
x = x + 1
end
end
draw()
function click()
if selected == 1 then
 
end
if slected == 2 then
  print("test")
end
if slected == 3 then
  os.reboot()
end
end
repeat
none, key = os.pullEvent ("key")
if key == 208 then
selected = selected + 1
if selected > maxEintrag then
selected = 1
end
draw()
end
if key == 200 then
selected = selected-1
if selected <= 0 then
selected = maxEintrag
end
draw()
end
if key == 28 then
click()
end
until reboot == true

if a == 1 then
   -- stuffs
elseif a == 2 then
   --more stuffs
elseif a == 3 then
   --even more stuffs
else
   --Derpaderp
end