/* 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_ser_w = new Image();
      b_ser_w.src = "img/b_services_w.jpg";
      b_por_w = new Image();
      b_por_w.src = "img/b_portfolio_w.jpg";
      b_abo_w = new Image();
      b_abo_w.src = "img/b_about_w.jpg";
      b_con_w = new Image();
      b_con_w.src = "img/b_contact_w.jpg";

      b_ser_g = new Image();
      b_ser_g.src = "img/b_services_g.jpg";
      b_por_g = new Image();
      b_por_g.src = "img/b_portfolio_g.jpg";
      b_abo_g = new Image();
      b_abo_g.src = "img/b_about_g.jpg";
      b_con_g = new Image();
      b_con_g.src = "img/b_contact_g.jpg";

      }

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

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

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