function checkHour(heure) {
	var heure0;

	if(heure < 10) {
		heure0 = 0;
	} else {
		heure0 = "";
	}

	return heure0;
}

function checkMin(min) {
	var min0;

	if(min < 10) {
		min0 = 0;
	} else {
		min0 = "";
	}

	return min0;
}

function checkSec(sec) {
	var sec0;

	if(sec < 10) {
		sec0 = 0;
	} else {
		sec0 = "";
	}

	return sec0;
}