function Affiche_Dep(pays) {

  if (pays == 'france') {
	
		document.getElementById('dep').style.display='block';
  
  } else {
  
  	   document.getElementById('dep').style.display='none';
  }		
}

function chiffres(event) {
	// Compatibilité IE / Firefox
	if(!event&&window.event) {
		event=window.event;
	}
	// IE
	if((event.keyCode < 48 || event.keyCode > 57) && (event.keyCode != 127)) {
		event.returnValue = false;
		event.cancelBubble = true;
	}
	// DOM
	if((event.which < 48 || event.which > 57) && (event.which != 8)) {
		event.preventDefault();
		event.stopPropagation();
	}
}