if (document.images) {

var B_email_act = new Image(); B_email_act.src = "navimg/B_yellow_act.jpg";

var B_email_inact = new Image(); B_email_inact.src = "navimg/B_yellow_inact.jpg";

var W_email_act = new Image(); W_email_act.src = "navimg/W_yellow_act.jpg";

var W_email_inact = new Image(); W_email_inact.src = "navimg/W_yellow_inact.jpg";

var B_order_act = new Image(); B_order_act.src = "navimg/B_green_act.jpg";

var B_order_inact = new Image(); B_order_inact.src = "navimg/B_green_inact.jpg";

var W_order_act = new Image(); W_order_act.src = "navimg/W_green_act.jpg";

var W_order_inact = new Image(); W_order_inact.src = "navimg/W_green_inact.jpg";

var W_gallery_act = new Image(); W_gallery_act.src = "navimg/W_red_act.jpg";

var W_gallery_inact = new Image(); W_gallery_inact.src = "navimg/W_red_inact.jpg";

var B_events_act = new Image(); B_events_act.src = "navimg/B_purple_act.jpg";

var B_events_inact = new Image(); B_events_inact.src = "navimg/B_purple_inact.jpg";

var W_events_act = new Image(); W_events_act.src = "navimg/W_purple_act.jpg";

var W_events_inact = new Image(); W_events_inact.src = "navimg/W_purple_inact.jpg";

var B_about_act = new Image(); B_about_act.src = "navimg/B_blue_act.jpg";

var B_about_inact = new Image(); B_about_inact.src = "navimg/B_blue_inact.jpg";

var W_about_act = new Image(); W_about_act.src = "navimg/W_blue_act.jpg";

var W_about_inact = new Image(); W_about_inact.src = "navimg/W_blue_inact.jpg";

}

          function act(imgName) {

            if (document.images) 

              document[imgName].src = eval(imgName + "_act.src");

          }

          function inact(imgName) {

            if (document.images)

              document[imgName].src = eval(imgName + "_inact.src");

          }