function menu(t,x,y,ht)
	local size={term.getSize()}
	ht=math.min(ht or 0,#t)
	local scrolled=0
	local scroll=false
	if #t>ht then scroll=true end
	local max=0
	for i=1,#t do
		max=math.max(max,#t[i])
	end
	
	while true do
		for i=1,(scroll and ht or #t) do
			term.setCursorPos(x,y+i-1)
			write(string.rep(' ',max))
		end
		for i=1,(scroll and ht or #t) do
			term.setCursorPos((scrolled>0 and i==1 and math.floor(max/2+x) or scrolled+ht<#t and i==ht and scroll and math.floor(max/2+x) or x),y+i-1)
			write(scrolled>0 and i==1 and '^' or scrolled+ht<#t and i==ht and scroll and 'v' or t[i+scrolled])
		end
		--if scroll then term.setCursorPos(x,y+ht-1) write('v') end
		local input={os.pullEvent()}
		if input[1]=='mouse_click' and input[2]==1 and input[3]>=x and input[3]<=x+max-1 and input[4]>=y and input[4]<=y+ht-1 then
			if scrolled>0 and input[4]==y then
				scrolled=scrolled-1
			elseif scrolled+ht<#t and scroll and input[4]==y+ht-1 then
				scrolled=scrolled+1
			else
				return t[input[4]+scrolled-y+1]
			end
		end
	end
end

term.clear()
print(menu({'111','222','333','444','555'},2,2,6))