Modifications

res = '<table style="border-spacing: 7px;">'

while i < m do

f = {}

f["args"] = {}

f.args[1] = i

p = tostring(date.u2p(f))

res = res..'<tr style="border: 1px solid black"><td style="border: 1px solid black">'..tostring(i)..'</td><td style="border: 1px solid black">'..p..'</td><td style="border: 1px solid black">'..tostring(date.u2i(f))..'</td></tr>'

end

res = res..'</table>'