browserName = navigator.appName;
     browserVer = parseInt(navigator.appVersion);
             if (browserName == "Netscape", "Microsoft Internet Explorer" && browserVer >= 3) version = "n3";
             else version = "n2";
             
             if (version == "n3") {
             s1on = new Image();
             s1on.src = "images/s-home-on.gif";
             s2on = new Image();
             s2on.src = "images/s-up-on.gif";
             s3on = new Image();
             s3on.src = "images/s-past-on.gif";
             s4on = new Image();
             s4on.src = "images/s-member-on.gif";
             s5on = new Image();
             s5on.src = "images/s-news-on.gif";             

             s7on = new Image();
             s7on.src = "images/s-inhouse-on.gif";
             s8on = new Image();
             s8on.src = "images/s-contact-on.gif";
             s9on = new Image();
             s9on.src = "images/i-home-on.gif";
             s10on = new Image();
             s10on.src = "images/i-sitemap-on.gif";
             s11on = new Image();
             s11on.src = "images/i-article-on.gif";        
             s12on = new Image();
             s12on.src = "images/i-payment-on.gif";                                   
   
             
             s1off = new Image();
             s1off.src = "images/s-home-off.gif";
             s2off = new Image();
             s2off.src = "images/s-up-off.gif";
             s3off = new Image();
             s3off.src = "images/s-past-off.gif";
             s4off = new Image();
             s4off.src = "images/s-member-off.gif";
             s5off = new Image();
             s5off.src = "images/s-news-off.gif";             

             s7off = new Image();
             s7off.src = "images/s-inhouse-off.gif";
             s8off = new Image();
             s8off.src = "images/s-contact-off.gif";
             s9off = new Image();
             s9off.src = "images/i-home-off.gif";
             s10off = new Image();
             s10off.src = "images/i-sitemap-off.gif";
             s11off = new Image();
             s11off.src = "images/i-article-off.gif";  
             s12off = new Image();
             s12off.src = "images/i-payment-off.gif";     
             }

     function img_act(imgName) {
             if (version == "n3") {
             imgOn = eval(imgName + "on.src");
             document [imgName].src = imgOn;
             }
     }

     function img_inact(imgName) {
             if (version == "n3") {
             imgOff = eval(imgName + "off.src");
             document [imgName].src = imgOff;
             }
     }