image1 = new Image();
image1.src = "nav/eng_menu1_p.gif";
image1on = new Image();
image1on.src = "nav/eng_menu1_a.gif";
image1stay = new Image();
image1stay.src = "nav/eng_menu1_a.gif";

image2 = new Image();
image2.src = "nav/eng_menu2_p.gif";
image2on = new Image();
image2on.src = "nav/eng_menu2_a.gif";
image2stay = new Image();
image2stay.src = "nav/eng_menu2_a.gif";

image3 = new Image();
image3.src = "nav/eng_menu3_p.gif";
image3on = new Image();
image3on.src = "nav/eng_menu3_a.gif";
image3stay = new Image();
image3stay.src = "nav/eng_menu3_a.gif";

image4 = new Image();
image4.src = "nav/eng_menu4_p.gif";
image4on = new Image();
image4on.src = "nav/eng_menu4_a.gif";
image4stay = new Image();
image4stay.src = "nav/eng_menu4_a.gif";

image5 = new Image();
image5.src = "nav/eng_menu5_p.gif";
image5on = new Image();
image5on.src = "nav/eng_menu5_a.gif";
image5stay = new Image();
image5stay.src = "nav/eng_menu5_a.gif";

image6 = new Image();
image6.src = "nav/eng_menu6_p.gif";
image6on = new Image();
image6on.src = "nav/eng_menu6_a.gif";
image6stay = new Image();
image6stay.src = "nav/eng_menu6_a.gif";

image7 = new Image();
image7.src = "nav/eng_menu7_p.gif";
image7on = new Image();
image7on.src = "nav/eng_menu7_a.gif";
image7stay = new Image();
image7stay.src = "nav/eng_menu7_a.gif";

imageStay = ""

function imageon(name){
        if (imageStay != name){
                document[name].src = eval(name + "on.src");
        }
}

function imageoff(name){
        if (imageStay != name){
                document[name].src = eval(name + ".src");
        }
}

function on(name){
        imageon(name);
}

function off(name){
        imageoff(name);
}

function stay(name){
        document[name].src = eval(name + "stay.src");
        if (imageStay != name){
                if (imageStay != ""){
                        document[imageStay].src = eval(imageStay + ".src");
                }
        }
        imageStay = name
}