function timeDiff($s){
    $m=0;$hr=0;$d=0;$td="à l'instant";
    if($s>59) {
        $m = (int)($s/60);
        $s = $s-($m*60); // sec left over
        $td = "$m min";
    }
    if($m>59){
        $hr = (int)($m/60);
        $m = $m-($hr*60); // min left over
        $td = "$hr h";
        if($m>0) $td .= ", $m min";
    }
    if($hr>23){
        $d = (int)($hr/24);
        $hr = $hr-($d*24); // hr left over
        $td = "$d ".'jour'; if($d>1) $td .= "s";
        if($d<3){
            if($hr>0) $td .= ", $hr h";
        }
    }
    return $td;
} 

function secAsTime($s) {
	$min = $s/60;
	$heures = $s/3600;
	$jours = $s/(3600*24);
	
	$mois = intval($s/(30*24*3600));
	$phrase = $mois.' mois';
	
	$jours = intval($jours - ($mois*30));
	$phrase .= ($jours != 0) ? ', '.$jours.' jours' : '';

	$heures = intval($heures - ($jours * 24) - ($mois*30*24));
	$phrase .= ($heures != 0) ? ', '.$heures.' heures' : '';

	$min = intval($min - ($heures*60) - ($jours * 24 * 60) - ($mois*30*24*60));
	$phrase .= ($min != 0) ? ' et '.$min.' min' : '';

	return $phrase;
}

function timeForMessages($dateTime, $lang = false) {
	$monthFr = array('', 'Jan', 'F&eacute;v', 'Mar', 'Avr', 'Mai', 'Jun', 'Jul', 'Ao&ucirc;', 'Sep', 'Oct', 'Nov', 'D&eacute;c');
	$monthDe = array('', 'Jan', 'Feb', 'M&auml;r', 'Avr', 'Ma&iuml;', 'Jun', 'Jul', 'Aug', 'Sep', 'Okt', 'Nov', 'Dez');

	$i = date("n", strtotime($dateTime));
	
	switch($lang) {
		case 'fr_FR':
			$month = $monthFr[$i];
		break;
		case 'de_DE':
			$month = $monthDe[$i];
		break;
		case 'en_US':
			$month = date("M ", strtotime($dateTime));
		break;
		default:
			$month = date("M ", strtotime($dateTime));
	}		
	
	$dateTrans = date("j ", strtotime($dateTime));
	$dateTrans .= $month;
	$dateTrans .= date(" G:i", strtotime($dateTime));
	
	return $dateTrans;
}