Change This:

$hh += 0;   # stop warning as $hh may not be initialised
$dd += 0;   # same as $hh :)
$etime_secs= $ss+($mm*60)+($hh*60*60)+($dd*24*60*60);
[download]

To This:

$etime_secs= $ss+($mm*60)+($hh?$hh*60*60:0)+($dd?$dd*24*60*60:0);
[download]

Note that undefined or 0, it does not matter that it returns 0 with the ternary operator (0*anything = 0, anyway).

-enlil