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/mnv_abt1.gif";
            Bon = new Image();           
            Bon.src = "image/mnv_job1.gif";
            Con = new Image();
            Con.src = "image/mnv_sub1.gif";
            Don = new Image();
            Don.src = "image/mnv_cnt1.gif";
			Eon = new Image();
            Eon.src = "image/mnv_can1.gif";
            Fon = new Image();
            Fon.src = "image/mnv_em1.gif";
			Gon = new Image();
            Gon.src = "image/mnv_cser1.gif";


            Aoff = new Image();           
            Aoff.src = "image/mnv_abt0.gif";
            Boff = new Image();           
            Boff.src = "image/mnv_job0.gif";
            Coff = new Image();
            Coff.src = "image/mnv_sub0.gif";
            Doff = new Image();
            Doff.src = "image/mnv_cnt0.gif";
			Eoff = new Image();
            Eoff.src = "image/mnv_can0.gif";
            Foff = new Image();
            Foff.src = "image/mnv_em0.gif";
			Goff = new Image();
            Goff.src = "image/mnv_cser0.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['D'].src = Doff.src;
			document.images['E'].src = Eoff.src;
            document.images['F'].src = Foff.src;
			document.images['G'].src = Goff.src;
            document.images[imgName].src = eval(imgName + "on.src");
			}
    }

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