if (document.images) {
// ======================= preload rollover main and sub navigation button images
var menu_about_on = new Image (); menu_about_on.src = "images/menu_about_on.gif";
var menu_careers_on = new Image (); menu_careers_on.src = "images/menu_careers_on.gif";
var menu_clients_on = new Image (); menu_clients_on.src = "images/menu_clients_on.gif";
var menu_contact_on = new Image (); menu_contact_on.src = "images/menu_contact_on.gif";
var menu_expertise_on = new Image (); menu_expertise_on.src = "images/menu_expertise_on.gif";
var menu_thinking_on = new Image (); menu_thinking_on.src = "images/menu_thinking_on.gif";



var subnav_bios_on = new Image (); subnav_bios_on.src = "images/subnav_about_bios_on.gif";
var subnav_consult_on = new Image (); subnav_consult_on.src = "images/subnav_about_consult_on.gif";
var subnav_what_on = new Image (); subnav_what_on.src = "images/subnav_about_what_on.gif";
var subnav_who_on = new Image (); subnav_who_on.src = "images/subnav_about_who_on.gif";

var subnav_why_on = new Image (); subnav_why_on.src = "images/subnav_about_why_on.gif";
var subnav_careers_contact_on = new Image (); subnav_careers_contact_on.src = "images/subnav_careers_contact_on.gif";
var subnav_culture_on = new Image (); subnav_culture_on.src = "images/subnav_careers_culture_on.gif";
var subnav_face_on = new Image (); subnav_face_on.src = "images/subnav_careers_face_on.gif";

var subnav_assess_on = new Image (); subnav_assess_on.src = "images/subnav_expert_assess_on.gif";
var subnav_brand_on = new Image (); subnav_brand_on.src = "images/subnav_expert_brand_on.gif";
var subnav_expert_client_on = new Image (); subnav_expert_client_on.src = "images/subnav_expert_client_on.gif";
var subnav_expert_expertise_on = new Image (); subnav_expert_expertise_on.src = "images/subnav_expert_expertise_on.gif";

var subnav_implement_on = new Image (); subnav_implement_on.src = "images/subnav_expert_implement_on.gif";
var subnav_expert_market_on = new Image (); subnav_expert_market_on.src = "images/subnav_expert_market_on.gif";
var subnav_think_market_on = new Image (); subnav_think_market_on.src = "images/subnav_think_market_on.gif";
var subnav_one_on = new Image (); subnav_one_on.src = "images/subnav_think_one_on.gif";

var subnav_quarter_on = new Image (); subnav_quarter_on.src = "images/subnav_think_quarter_on.gif";
}