var ImageEnabled = false;
var Browser = navigator.appName;
var Version = parseInt(navigator.appVersion);

if ((Browser == "Netscape") && (Version >= 3)) {
        ImageEnabled = true;
} else {
        if ((Browser == "Microsoft Internet Explorer") && (Version >= 4)) {
                ImageEnabled = true;
        }
}
 
if (ImageEnabled) {
        GotoOff = new Image;
        GotoOff.src = "images/lx_03_menu.gif";
        GotoOn = new Image;
        GotoOn.src = "images/lx_03_2.gif";
        Goto1Off = new Image;
        Goto1Off.src = "images/lx_05_menu.gif";
        Goto1On = new Image;
        Goto1On.src = "images/lx_05_2.gif";
        Goto2Off = new Image;
        Goto2Off.src = "images/lx_07_menu.gif";
        Goto2On = new Image;
        Goto2On.src = "images/lx_07_2.gif";
        Goto3Off = new Image;
        Goto3Off.src = "images/lx_09_menu.gif";
        Goto3On = new Image;
        Goto3On.src = "images/lx_09_2.gif";
        Goto4Off = new Image;
        Goto4Off.src = "images/lx_11_menu.gif";
        Goto4On = new Image;
        Goto4On.src = "images/lx_11_2.gif";
}

function ChangeImage (ImageName,Way) {
        if (ImageEnabled) {
                document[ImageName].src = window[ImageName + Way].src;
        }
}