function calcul(){

	var school = 0 + Number(document.getElementById("school").value);
	var work = 0 + Number(document.getElementById("work").value);
	var sleep = 0 + Number(document.getElementById("sleep").value);
	var meals_care = 0 + Number(document.getElementById("meals_care").value);
	var leisure = 0 + Number(document.getElementById("leisure").value);

	var total = Number(school + work + sleep + meals_care + leisure);
	document.getElementById("total").value = total;

}