function Form_Erreur(message_erreur) {
		alert(message_erreur);
		return false;	
	}
	
	function Valeur(obj, obj_type) {
		if (obj_type == "TEXT" || obj_type == "PASSWORD") {
	    	if (obj.value.length == 0) 
	      		return false;
	    	else 
	      		return true;
	    } else if (obj_type == "SELECT") {
	        for (i=0; i < obj.length; i++) {
				if (obj[0].selected)
					return false;
				else
					return true;
			}
		} else if (obj_type == "EMAIL") {
			if((obj.value.indexOf("@") == -1) || (obj.value.charAt(0) == ".") || (obj.value.charAt(0) == "@") ||(obj.value.length < 6) || (obj.value.indexOf(".") == -1) || (obj.value.charAt(obj.value.indexOf("@")+1) == ".") || (obj.value.charAt(obj.value.indexOf("@")-1) == ".") || (obj.value.charAt(obj.value.length-1) == "@") || (obj.value.charAt(obj.value.length-1) == ".")) {
				return false;
			} else {
				return true;
			}
		} else if (obj_type == "ONERADIO" || obj_type == "ONECHECKBOX") {
			if (obj.checked == false) {
				return false;
			} else {
				return true;
			}
		} else if (obj_type == "RADIO" || obj_type == "CHECKBOX") {
			for (i=0; i < obj.length; i++) {
				if (obj[i].checked == true)
					return true;
			}
			return false;
		} else if (obj_type == "NUMERIC") {
			if (obj.value.length == 0) {
				return false;
			} else {
				theValue = obj.value;
				if (theValue.indexOf(',') > -1) {
					theValue = theValue.replace(",", ".");
					theValue = parseFloat(theValue);
				}
				if (isNaN(theValue)) {
					return false;
				} else {
					return true;
				}
			}
		}
	}