function changerFond( fond ){
	var elem = document.getElementById(fond);
	elem.style.background = "black";
	elem.style.color = "#C4E368";
}

function changerFond2( fond ){
	var elem = document.getElementById(fond);
	elem.style.background = "#C4E368";
	elem.style.color = "black";
}

function effacerTexte( texte ){
	document.getElementById(texte).value = "";
}
function Format_Tel(NumTel){
	var Tel;
	var i = 0;
	while (i < NumTel.length-1)
		{
		if ((NumTel.charAt(i) == ".")||(NumTel.charAt(i) == ",")||(NumTel.charAt(i) == "/")||(NumTel.charAt(i) == "-"))
			{
			Tel = NumTel.substring(0,i) + NumTel.substring(i+1,NumTel.length);
					NumTel = Tel; 
			}
			else{
			i++;
			}
		}
	return (NumTel);
}