function obroFinestra (url, ample, altura, finestra, barres, xloc, yloc)
	{
	finestreta = window.open(url, finestra, "left="+xloc+", top="+yloc+", toolbar=no,scrollbars=" + barres + ",directories=no, status=no, menubar=no, resizable=no, width=" + ample + ", height=" + altura);
	finestreta.location=url;
	finestreta.focus();
	}