function showMoonPhase(){
	var mnPeriod = 2551442976;
	// reference new moon: 14 MAY 2010 9:04 NY EDT time
	var mnKnownNewMoon = new Date(2010, 4, 13, 16, 4, 0);
	var today = new Date();
	var mnAgeMs = (today.getTime() - mnKnownNewMoon.getTime()) % mnPeriod;
	var mnAge = mnAgeMs/(1000*60*60*24);
    var imgToShow = Math.round(12 * mnAge/(mnPeriod/(1000*60*60*24)));
    if (mnAge >= 15 && imgToShow == 6) imgToShow = 7;
    var bgHorPos = 1 + imgToShow*61 % (12*61);
	var divLeft = 800;
	if (screen.width > 1024) divLeft = 965;
	var divTop = 85;
	var str ='';
	if(mnAge >= 28 || mnAge < 2) str += "Νέα Σελήνη";
	else if(mnAge < 14 ) str += "++ ";
	else if(mnAge >= 14 && mnAge <=15) str += "Πανσέληνος";
	else if(mnAge > 15 ) str += "-- ";

	str += " (" + Math.round(mnAge);
	if (Math.round(mnAge) == 1) str += ' ημέρας)';
	else str += ' ημερών)';
	document.writeln('<div id="facesofthemoon" style="width:60px; height:120px; position:absolute; top:' + divTop + 'px; left:' + divLeft + 'px; background:url(/images/facesofthemoon.png) no-repeat -' + bgHorPos + 'px top" title="' + str + '"></div>');
}

showMoonPhase();