function getTime(data) {
if (data==-1)
 {
 return true;
 }
now = new Date();
y2k = new Date(data);
days = (y2k - now) / 1000 / 60 / 60 / 24;
daysRound = Math.floor(days);
hours = (y2k - now) / 1000 / 60 / 60 - (24 * daysRound);
hoursRound = Math.floor(hours);
minutes = (y2k - now) / 1000 /60 - (24 * 60 * daysRound) - (60 * hoursRound);
minutesRound = Math.floor(minutes);
seconds = (y2k - now) / 1000 - (24 * 60 * 60 * daysRound) - (60 * 60 * hoursRound) - (60 * minutesRound);
secondsRound = Math.round(seconds);
sec = (secondsRound == 1) ? " sek." : " sek.";
min = (minutesRound == 1) ? " min" : " min, ";
hr = (hoursRound == 1) ? " godz" : " godz, ";
dy = (daysRound == 1) ? " dzień" : " dni, "
fs = "<font color=#1C4E8F>"
fk = "</font>"
if (secondsRound<0 || minutesRound<0 || hoursRound<0 || daysRound<0)
 {
 return true;
 }
document.getElementById("zegar").innerHTML = fs + daysRound + fk + dy + fs + hoursRound + fk + hr + fs + minutesRound + fk + min + fs + secondsRound + fk + sec;
}