return {
	capitalize = function(str)
		return string.upper(string.sub(str, 1,1)) .. string.sub(str, 2)
	end;

	rand = function(min,max)
		if not min then min = 16  end
		if not max then max = min end
		local str = ''
		local r_int   =            0x39 - 0x30
		local r_upper = r_int   + (0x5a - 0x41)
		local r_lower = r_upper + (0x7a - 0x61)
		for i = 1,math.random(max - min) + min do
			-- 0x30 -- 0x39
			-- 0x41 -- 0x5A
			-- 0x61 -- 0x71
			local codepoint = math.random(r_lower)
			if codepoint > r_upper then
				codepoint = (codepoint - r_upper) + 0x61
			elseif codepoint > r_int then
				codepoint = (codepoint - r_int) + 0x41
			else
				codepoint = codepoint + 0x30
			end
			str = str .. string.char(codepoint)
		end
		return str
	end;

	chop = function(str)
		if string.sub(str, 1,1) == ' ' then
			str = string.sub(str, 2)
		end
		if string.sub(str, #str,#str) == ' ' then
			str = string.sub(str, 1, #str - 1)
		end
		return str
	end;
}
