browserName = navigator.appName;          
        browserVer = parseInt(navigator.appVersion); 
 if ((browserName == "Netscape" && browserVer >= 3) || (browserVer > 3)) version = "n3";
            else version = "n2";
            
            if (version == "n3") {                 
            Aon = new Image();           
            Aon.src = "../image/nvt_abt1.gif";
            Bon = new Image();           
            Bon.src = "../image/nvt_ser1.gif";
            Con = new Image();
            Con.src = "../image/nvt_ad1.gif";
            AAon = new Image();
            AAon.src = "../image/nv_hm1.gif";
            BBon = new Image();           
            BBon.src = "../image/nv_mm1.gif";
            CCon = new Image();
            CCon.src = "../image/nv_cnt1.gif";
            DDon = new Image();           
            DDon.src = "../image/nv_emp1.gif";
            EEon = new Image();
            EEon.src = "../image/nv_pri1.gif";
            FFon = new Image();           
            FFon.src = "../image/nv_trm1.gif";


            Aoff = new Image();           
            Aoff.src = "../image/nvt_abt0.gif";
            Boff = new Image();           
            Boff.src = "../image/nvt_ser0.gif";
            Coff = new Image();
            Coff.src = "../image/nvt_ad0.gif";
            AAoff = new Image();
            AAoff.src = "../image/nv_hm0.gif";
            BBoff = new Image();           
            BBoff.src = "../image/nv_mm0.gif";
            CCoff = new Image();
            CCoff.src = "../image/nv_cnt0.gif";
            DDoff = new Image();           
            DDoff.src = "../image/nv_emp0.gif";
            EEoff = new Image();
            EEoff.src = "../image/nv_pri0.gif";
            FFoff = new Image();           
            FFoff.src = "../image/nv_trm0.gif";
			}

function select(imgName) {
            if (version == "n3") {                 
            document.images['A'].src = Aoff.src;
            document.images['B'].src = Boff.src;
            document.images['C'].src = Coff.src;
            document.images['AA'].src = AAoff.src;
            document.images['BB'].src = BBoff.src;
            document.images['CC'].src = CCoff.src;
            document.images['DD'].src = DDoff.src;
            document.images['EE'].src = EEoff.src;
            document.images['FF'].src = FFoff.src;
            document.images[imgName].src = eval(imgName + "on.src");
			}
    }

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