/* This code is Copyright (c) 1996 Nick Heinle and Athenia Associates,
          * all rights reserved. In order to receive the right to license this
          * code for use on your site the original code must be copied from the
          * Web site webreference.com/javascript/. License is granted to user to
          * reuse this code on their own Web site if and only if this entire copyright
          * notice is included. Code written by Nick Heinle of webreference.com.
          */

    browserName = navigator.appName;
    browserVer = parseInt(navigator.appVersion);
    version="";
          if (browserName == "Netscape" && browserVer >= 3) version = "acceptable";
          if (browserName == "Microsoft Internet Explorer" && browserVer >= 3) version = "acceptable";
          if (version != "acceptable"){
            //alert("Rejected browserName: "+browserName+", Rejected browserVer: "+browserVer);
            version = "unacceptable";
          }

     if (version=="acceptable") {
      b_mts_over = new Image();
      b_mts_over.src = "/media/images/b_mts_over.png";
      b_pre_over = new Image();
      b_pre_over.src = "/media/images/b_pre_over.png";
      b_unx_over = new Image();
      b_unx_over.src = "/media/images/b_unx_over.png";
      b_srv_over = new Image();
      b_srv_over.src = "/media/images/b_srv_over.png";

      b_mts_down = new Image();
      b_mts_down.src = "/media/images/b_mts_down.png";
      b_pre_down = new Image();
      b_pre_down.src = "/media/images/b_pre_down.png";
      b_unx_down = new Image();
      b_unx_down.src = "/media/images/b_unx_down.png";
      b_srv_down = new Image();
      b_srv_down.src = "/media/images/b_srv_down.png";

      b_mts_normal = new Image();
      b_mts_normal.src = "/media/images/b_mts_normal.png";
      b_pre_normal = new Image();
      b_pre_normal.src = "/media/images/b_pre_normal.png";
      b_unx_normal = new Image();
      b_unx_normal.src = "/media/images/b_unx_normal.png";
      b_srv_normal = new Image();
      b_srv_normal.src = "/media/images/b_srv_normal.png";
      }

      function img_act(imgName) {
        if (version == "acceptable") {
          document[imgName].src = eval(imgName + "_over.src");
        }
      }

      function img_dwn(imgName) {
        if (version == "acceptable") {
          document[imgName].src = eval(imgName + "_down.src");
        }
      }

      function img_inact(imgName) {
        if (version == "acceptable") {
          document[imgName].src = eval(imgName + "_normal.src");
        }
      }