function showhide(what, what2){
	if (what.style.display=='none'){
		what.style.display='';
		document.getElementById(what2).innerHTML = '-';
		}
	else{
		what.style.display='none'
		document.getElementById(what2).innerHTML = '+';
		}
	}

function display_family(_family) {
	window.location = "/cgi-bin/productos.pl?Family="+ _family;
	}