// JavaScript Document
function affiche_rub(elem)
{
	tab = document.form.all_categories.value.split('-');
	nb_categories = tab.length;
	cpt = 0;
	while(cpt < nb_categories)
	{
		nom_select = document.getElementById('form_rubrique' + tab[cpt]);
		nom_select.style.display = 'none';
		cpt = cpt + 1;
	}
	nom_select = document.getElementById('form_rubrique' + elem);
	nom_select.style.display = 'block';
}