var NN3 = false;
image11= new Image();
image11.src = "images/back6.gif";
image11on = new Image();
image11on.src = "images/back5.gif";
image12= new Image();
image12.src = "images/print.gif";
image12on = new Image();
image12on.src = "images/print2.gif";
image13= new Image();
image13.src = "images/sipka1.gif";
image13on = new Image();
image13on.src = "images/sipka2.gif";
image14= new Image();
image14.src = "images/word1.gif";
image14on = new Image();
image14on.src = "images/word2.gif";

function on3(name)   {
        document[name].src = eval(name + "on.src");
}
function off3(name)  {
        document[name].src = eval(name + ".src");
}
NN3 = true;
function on(name)  {
        if (NN3) on3(name);
}
function off(name)  {
        if (NN3) off3(name);
}