function marcaseccio(sec) {
	var x=document.getElementById('pes-selected');
	switch(sec) {
		case 'quisom' :
			x.style.left='168px';
			x.style.width='86px';
			x.style.background='url(imag/interior_quisom_s.gif)';
			break;
		case 'serveis' :
			x.style.left='255px';
			x.style.width='81px';
			x.style.background='url(imag/interior_serveis_s.gif)';
			break;
		case 'professionals' :
			x.style.left='337px';
			x.style.width='115px';
			x.style.background='url(imag/interior_professionals_s.gif)';
			break;
		case 'direccio' :
			x.style.left='453px';
			x.style.width='174px';
			x.style.background='url(imag/interior_direccio_s.gif)';
			break;
		case 'contactar' :
			x.style.left='628px';
			x.style.width='96px';
			x.style.background='url(imag/interior_contactar_s.gif)';
			break;
	}
}