var NN3 = false;
cb1f = new Image();	cb1f.src = "img/cb1f.gif";
cb1n = new Image();	cb1n.src = "img/cb1n.gif";
cb2f = new Image();	cb2f.src = "img/cb2f.gif";
cb2n = new Image();	cb2n.src = "img/cb2n.gif";
cb3f = new Image();	cb3f.src = "img/cb3f.gif";
cb3n = new Image();	cb3n.src = "img/cb3n.gif";
cb4f = new Image();	cb4f.src = "img/cb4f.gif";
cb4n = new Image();	cb4n.src = "img/cb4n.gif";
cb5f = new Image();	cb5f.src = "img/cb5f.gif";
cb5n = new Image();	cb5n.src = "img/cb5n.gif";

ltron = new Image();	ltron.src = "img/l_top_ru_on.gif";
ltrof = new Image();	ltrof.src = "img/l_top_ru_off.gif";
lbeon = new Image();	lbeon.src = "img/l_bot_en_on.gif";
lbeof = new Image();	lbeof.src = "img/l_bot_en_off.gif";

t1lvon = new Image();	t1lvon.src = "img/t1_lv_on.gif";
t1lvof = new Image();	t1lvof.src = "img/t1_lv_off.gif";
t2lvon = new Image();	t2lvon.src = "img/t2_lv_on.gif";
t2lvof = new Image();	t2lvof.src = "img/t2_lv_off.gif";
t3lvon = new Image();	t3lvon.src = "img/t3_lv_on.gif";
t3lvof = new Image();	t3lvof.src = "img/t3_lv_off.gif";
t4lvon = new Image();	t4lvon.src = "img/t4_lv_on.gif";
t4lvof = new Image();	t4lvof.src = "img/t4_lv_off.gif";
t5lvon = new Image();	t5lvon.src = "img/t5_lv_on.gif";
t5lvof = new Image();	t5lvof.src = "img/t5_lv_off.gif";

function on3(name)   {
        document[name].src = eval(name + "n.src");
        //alert(document[name].src);
        if (name == 'cb5') document['t1lvo'].src = eval('t1lvo' + "n.src");
        if (name == 'cb4') document['t2lvo'].src = eval('t2lvo' + "n.src");
        if (name == 'cb3') document['t3lvo'].src = eval('t3lvo' + "n.src");
        if (name == 'cb2') document['t4lvo'].src = eval('t4lvo' + "n.src");
        if (name == 'cb1') document['t5lvo'].src = eval('t5lvo' + "n.src");
}
function off3(name)  {
        document[name].src = eval(name + "f.src");

        if (name == 'cb5') document['t1lvo'].src = eval('t1lvo' + "f.src");
        if (name == 'cb4') document['t2lvo'].src = eval('t2lvo' + "f.src");
        if (name == 'cb3') document['t3lvo'].src = eval('t3lvo' + "f.src");
        if (name == 'cb2') document['t4lvo'].src = eval('t4lvo' + "f.src");
        if (name == 'cb1') document['t5lvo'].src = eval('t5lvo' + "f.src");
}
NN3 = true;

function on(name)  {
        if (NN3) on3(name);
}
function off(name)  {
        if (NN3) off3(name);
}