img51on = new Image(); img51on.src = "../images/on/doctor.jpg"; img51off = new Image(); img51off.src = "../images/off/doctor.jpg";
img52on = new Image(); img52on.src = "../images/on/master.jpg"; img52off = new Image(); img52off.src = "../images/off/master.jpg";

img51Aon = new Image(); img51Aon.src = "../images/nav/on_gry.gif"; img51Aoff = new Image(); img51Aoff.src = "../images/nav/off.gif";
img52Aon = new Image(); img52Aon.src = "../images/nav/on_gry.gif"; img52Aoff = new Image(); img52Aoff.src = "../images/nav/off.gif";

img52Atop = new Image(); img52Atop.src = "../images/nav/on_top.gif"; img52Aoff = new Image(); img52Aoff.src = "../images/nav/off.gif";