function isValide(chaine){
	return (chaine!=vide)&&(chaine.trim()!="")&&(!indico(chaine))&&(oklen(chaine));
}
function in_array(array, val) {
    for(var i = 0, l = array.length; i < l; i++) {if(array[i] == val) {return true;}}
    return false;
}
function indico(chaine){
	CHAINE=chaine.toUpperCase();
	var dico = new Array(
		"A","UN","UNE","LE","LA","LES","DE","DU","DES",
		"L'","D'","D'"
	);		
	return (in_array(dico,CHAINE));
}
function oklen(chaine){
	return(chaine.length>2);
}