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 = "pics/arr2.gif";
image1on = new Image();
image1on.src = "pics/arr3.gif";

image2= new Image();
image2.src = "pics/arr1.gif";
image2on = new Image();
image2on.src = "pics/arr1-2.gif";




function imageon(name)   {
        document[name].src = eval(name + "on.src");
}
function imageoff(name)  {
        document[name].src = eval(name + ".src");
}
NN3 = true;

function on(name)  {
        if (check == true){
                imageon(name);}
}
function off(name)  {
        if (check == true){
                imageoff(name);}
}