<!--
var browser, version;
var disable = 1;
var toc = new Array();
browser = navigator.appName;
version = parseInt(navigator.appVersion);
if (browser == "Netscape" && version >= 3) disable = 0;
if (browser == "Microsoft Internet Explorer" && version >= 4) disable = 0;
if (document.images == null) disable = 1;
function item(off, over)
{
if (disable) return;
this.off = new Image(); this.off.src = off;
this.over = new Image(); this.over.src = over;
}
function cache(id, off, over)
{
if (disable) return;
item[id] = new item(off, over);
toc[toc.length] = id;
}
function over(id)
{
if (disable) return;
document[id].src = item[id].over.src;
}
function out(id)
{
if (disable) return;
document[id].src = item[id].off.src;
}
cache("bt_cca", "../imagenes/bt_cca.gif", "../imagenes/bt_ccaon.gif");
cache("bt_miembros", "../imagenes/bt_miembros.gif", "../imagenes/bt_miembroson.gif");
cache("bt_subrings", "../imagenes/bt_subrings.gif", "../imagenes/bt_subringson.gif");
cache("bt_sobre", "../imagenes/bt_sobre.gif", "../imagenes/bt_sobreon.gif");
//-->