v = parseInt(navigator.appVersion);
candoit = "no";
if (navigator.appName == "Netscape" && v>=3) candoit = "yes";
if (navigator.appName == "Microsoft Internet Explorer" && v>=4) candoit = "yes";
if (candoit == "yes") {

m1Dn=new Image(19,19);
m1Dn.src="../img/but_d.jpg";
m1Up=new Image(19,19);
m1Up.src="../img/but_a.jpg";

m2Dn=new Image(19,19);
m2Dn.src="../img/but_d.jpg";
m2Up=new Image(19,19);
m2Up.src="../img/but_a.jpg";

m3Dn=new Image(19,19);
m3Dn.src="../img/but_d.jpg";
m3Up=new Image(19,19);
m3Up.src="../img/but_a.jpg";

m4Dn=new Image(19,19);
m4Dn.src="../img/but_d.jpg";
m4Up=new Image(19,19);
m4Up.src="../img/but_a.jpg";

m5Dn=new Image(19,19);
m5Dn.src="../img/but_d.jpg";
m5Up=new Image(19,19);
m5Up.src="../img/but_a.jpg";

m6Dn=new Image(19,19);
m6Dn.src="../img/but_d.jpg";
m6Up=new Image(19,19);
m6Up.src="../img/but_a.jpg";

m7Dn=new Image(19,19);
m7Dn.src="../img/but_d.jpg";
m7Up=new Image(19,19);
m7Up.src="../img/but_a.jpg";

m8Dn=new Image(19,19);
m8Dn.src="../img/but_d.jpg";
m8Up=new Image(19,19);
m8Up.src="../img/but_a.jpg";

m9Dn=new Image(19,19);
m9Dn.src="../img/but_d.jpg";
m9Up=new Image(19,19);
m9Up.src="../img/but_a.jpg";

m10Dn=new Image(19,19);
m10Dn.src="../img/but_d.jpg";
m10Up=new Image(19,19);
m10Up.src="../img/but_a.jpg";
}
function PressButton(ButtonName) {
        if (candoit == "yes") {
        document.images[ButtonName].src=eval(ButtonName + "Up.src");
        }
}

function ReleaseButton(ButtonName) {
        if (candoit == "yes") {
        document.images[ButtonName].src=eval(ButtonName + "Dn.src");
        }

}