if (navigator.appVersion.indexOf("2.") != -1){  check = false;  }
if ((navigator.appVersion.indexOf("3.") != -1) && (navigator.appName.indexOf("Explorer") != -1)){
        check = false;  }else { check = true;   }
image1= new Image();
image1.src = "image/abt.gif";
image1on = new Image();
image1on.src = "image/abt1.gif";
image2= new Image();
image2.src = "image/ser.gif";
image2on = new Image();
image2on.src = "image/ser1.gif";
image3= new Image();
image3.src = "image/client.gif";
image3on = new Image();
image3on.src = "image/clients1.gif";
image4= new Image();
image4.src = "image/special.gif";
image4on = new Image();
image4on.src = "image/special1.gif";
image5= new Image();
image5.src = "image/buy.gif";
image5on = new Image();
image5on.src = "image/buy1.gif";
image6= new Image();
image6.src = "image/cont.gif";
image6on = new Image();
image6on.src = "image/cont1.gif";
function imageon(name) {document[name].src = eval(name + "on.src");}
function imageoff(name) {document[name].src = eval(name + ".src");}
function on(name) {if (check == true){imageon(name);}}
function off(name) {if (check == true){imageoff(name);}}
function go1(){
        if (document.selecter1.select1.options[document.selecter1.select1.selectedIndex].value != "none") {
        location = document.selecter1.select1.options[document.selecter1.select1.selectedIndex].value
        }
}