function mots_cles_selectionner(mot_cle_numero,recherche)
	{
	Expression = new RegExp(recherche,'i');
	option_numero = 1;
	while ((mot_cle=document.getElementById('mot_cle_'+mot_cle_numero+'_option_'+option_numero))!=null)
		{
		if (Expression.test(mot_cle.value))
			mot_cle.style.display='block';
		else
			mot_cle.style.display='none';
		option_numero++;
		}
	}