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 = "images/1b1.gif";
image1on = new Image();
image1on.src = "images/b1.gif";


image2= new Image();
image2.src = "images/1b2.gif";
image2on = new Image();
image2on.src = "images/b2.gif";


image4= new Image();
image4.src = "images/1b4.gif";
image4on = new Image();
image4on.src = "images/b4.gif";


image5= new Image();
image5.src = "images/1b5.gif";
image5on = new Image();
image5on.src = "images/b5.gif";


image6= new Image();
image6.src = "images/1b6.gif";
image6on = new Image();
image6on.src = "images/b6.gif";

image7= new Image();
image7.src = "images/1b7.gif";
image7on = new Image();
image7on.src = "images/b7.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);
	}
}