function Calcul(letexte,carac,n) 
{   
	nbcar = letexte.value.length;
	if (nbcar >= (n-50))
     {carac.style.color ="RED";}
	 else {carac.style.color ="#026090";}
	if (nbcar > n ) {
	  letexte.value = letexte.value.substring(0, n);
	  alert("Vous avez atteint la limite de "+n+" CARACTERES..");
	  valcar = 0;
	 } 
	else  
	  valcar = n - nbcar;
	  carac.value = valcar;
}
function reSetStyle(carac)
{
	carac.style.color ="#F1A292";
}