menu_0On =  new Image();
menu_0On.src = "img/menu_0.png";
menu_0Off =  new Image();
menu_0Off.src = "img/but_m.gif";

menu_1On =  new Image();
menu_1On.src = "img/menu_1.png";
menu_1Off =  new Image();
menu_1Off.src = "img/but_m.gif";

menu_2On =  new Image();
menu_2On.src = "img/menu_2.png";
menu_2Off =  new Image();
menu_2Off.src = "img/but_m.gif";

menu_3On =  new Image();
menu_3On.src = "img/menu_3.png";
menu_3Off =  new Image();
menu_3Off.src = "img/but_m.gif";

menu_4On =  new Image();
menu_4On.src = "img/menu_4.png";
menu_4Off =  new Image();
menu_4Off.src = "img/but_m.gif";

menu_5On =  new Image();
menu_5On.src = "img/menu_5.png";
menu_5Off =  new Image();
menu_5Off.src = "img/but_m.gif";


function on(pic)
{
 if(document.images)
  {
    document.images[pic].src=eval(pic + "On.src");
  }
}

function off(pic)
{
 if(document.images)
  {
    document.images[pic].src=eval(pic + "Off.src");
  }
}