function getAppVersion() {
                appname= navigator.appName;
                appversion = navigator.appVersion;
                majorver = appversion.substring(0, 1);
                if ( (appname == "Netscape") && ( majorver >= 3 ) ) return 1;
                if ( (appname == "Microsoft Internet Explorer") && (majorver >= 4) ) return 1;
        return 0;
}

function swtchon(num, imgname) {
  if (getAppVersion()) {
 document[imgname].src = img[num].src;
}
}

imgsrc = new Array();

imgsrc[0] = "/img/about_off.gif";
imgsrc[1] = "/img/about_on.gif";

imgsrc[2] = "/img/contact_off.gif";
imgsrc[3] = "/img/contact_on.gif";

imgsrc[4] = "/img/leftnav_available_off.gif";
imgsrc[5] = "/img/leftnav_available_on.gif";

imgsrc[6] = "/img/leftnav_prospect_off.gif";
imgsrc[7] = "/img/leftnav_prospect_on.gif";

imgsrc[8] = "/img/leftnav_portfolio_off.gif";
imgsrc[9] = "/img/leftnav_portfolio_on.gif";

imgsrc[10] = "/img/leftnav_commercial_off.gif";
imgsrc[11] = "/img/leftnav_commercial_on.gif";

imgsrc[12] = "/img/leftnav_scott_off.gif";
imgsrc[13] = "/img/leftnav_scott_on.gif";

imgsrc[14] = "/img/leftnav_about_off.gif";
imgsrc[15] = "/img/leftnav_about_on.gif";

imgsrc[42] = "/img/leftnav_home_off.gif";
imgsrc[43] = "/img/leftnav_home_on.gif";

imgsrc[16] = "/img/leftnav_portfolio_top_on.gif";
imgsrc[17] = "/img/leftnav_portfolio_top_off.gif";

imgsrc[18] = "/img/leftnav_portfolio_brookton_on.gif";
imgsrc[19] = "/img/leftnav_portfolio_brookton_off.gif";

imgsrc[20] = "/img/leftnav_portfolio_winston_on.gif";
imgsrc[21] = "/img/leftnav_portfolio_winston_off.gif";

imgsrc[22] = "/img/leftnav_portfolio_ron_on.gif";
imgsrc[23] = "/img/leftnav_portfolio_ron_off.gif";

imgsrc[24] = "/img/leftnav_available_top_on.gif";
imgsrc[25] = "/img/leftnav_available_top_off.gif";

imgsrc[26] = "/img/leftnav_available_ben_on.gif";
imgsrc[27] = "/img/leftnav_available_ben_off.gif";

imgsrc[28] = "/img/leftnav_available_grey_on.gif";
imgsrc[29] = "/img/leftnav_available_grey_off.gif";

imgsrc[30] = "/img/leftnav_available_holly_on.gif";
imgsrc[31] = "/img/leftnav_available_holly_off.gif";

imgsrc[32] = "/img/leftnav_available_chris_on.gif";
imgsrc[33] = "/img/leftnav_available_chris_off.gif";

imgsrc[34] = "/img/leftnav_prospect_top_on.gif";
imgsrc[35] = "/img/leftnav_prospect_top_off.gif";

imgsrc[36] = "/img/leftnav_prospect_marlin_on.gif";
imgsrc[37] = "/img/leftnav_prospect_marlin_off.gif";

imgsrc[38] = "/img/leftnav_prospect_pen_on.gif";
imgsrc[39] = "/img/leftnav_prospect_pen_off.gif";

imgsrc[40] = "/img/leftnav_prospect_getty_on.gif";
imgsrc[41] = "/img/leftnav_prospect_getty_off.gif";

imgsrc[44] = "/img/leftnav_available_asht_on.gif";
imgsrc[45] = "/img/leftnav_available_asht_off.gif";

imgsrc[46] = "/img/leftnav_available_irvin_on.gif";
imgsrc[47] = "/img/leftnav_available_irvin_off.gif";

imgsrc[48] = "/img/leftnav_available_villa_on.gif";
imgsrc[49] = "/img/leftnav_available_villa_off.gif";

imgsrc[50] = "/img/leftnav_hickory_on.gif";
imgsrc[51] = "/img/leftnav_hickory_off.gif";

imgsrc[52] = "/img/leftnav_sas_on.gif";
imgsrc[53] = "/img/leftnav_sas_off.gif";

imgsrc[54] = "/img/leftnav_commercial_top_off.gif";
imgsrc[55] = "/img/leftnav_commercial_top_on.gif";

imgsrc[56] = "/img/leftnav_commercial_cherokee_off.gif";
imgsrc[57] = "/img/leftnav_commercial_cherokee_on.gif";

imgsrc[58] = "/img/leftnav_commercial_barton_off.gif";
imgsrc[59] = "/img/leftnav_commercial_barton_on.gif";

imgsrc[60] = "/img/leftnav_commercial_jarvis_off.gif";
imgsrc[61] = "/img/leftnav_commercial_jarvis_on.gif";

imgsrc[62] = "/img/leftnav_commercial_parkside_off.gif";
imgsrc[63] = "/img/leftnav_commercial_parkside_on.gif";

imgsrc[64] = "/img/leftnav_peninsula_off.gif";
imgsrc[65] = "/img/leftnav_peninsula_on.gif";

if (getAppVersion()) {
        img = new Array();
        for (i = 0; i < imgsrc.length; i++) {
                img[i] = new Image();
                img[i].src = imgsrc[i];
        }
}