iHomeOn = new Image();
iHomeOff = new Image();
iHomeOn.src = "img/homeon.gif";
iHomeOff.src = "img/home.gif";
iContOn = new Image();
iContOff = new Image();
iContOn.src = "img/conton.gif";
iContOff.src = "img/cont.gif";
iFacOn = new Image();
iFacOff = new Image();
iFacOn.src = "img/facon.gif";
iFacOff.src = "img/fac.gif";
iProgOn = new Image();
iProgOff = new Image();
iProgOn.src = "img/progon.gif";
iProgOff.src = "img/prog.gif";
iProfOn = new Image();
iProfOff = new Image();
iProfOn.src = "img/profon.gif";
iProfOff.src = "img/prof.gif";
iStaffOn = new Image();
iStaffOff = new Image();
iStaffOn.src = "img/staffon.gif";
iStaffOff.src = "img/staff.gif";
iDevOn = new Image();
iDevOff = new Image();
iDevOn.src = "img/devon.gif";
iDevOff.src = "img/dev.gif";
iLinkOn = new Image();
iLinkOff = new Image();
iLinkOn.src = "img/linkson.gif";
iLinkOff.src = "img/links.gif";
iFprogOn = new Image();
iFprogOff = new Image();
iFprogOn.src = "img/fprogon.gif";
iFprogOff.src = "img/fprog.gif";
iFprog_cOn = new Image();
iFprog_cOff = new Image();
iFprog_cOn.src = "img/fprog_con.gif";
iFprog_cOff.src = "img/fprog_c.gif";

function ShowHome () {document.home.src=iHomeOn.src;}
function HideHome () {document.home.src=iHomeOff.src;}
function ShowCont () {document.cont.src=iContOn.src;}
function HideCont () {document.cont.src=iContOff.src;}
function ShowFac () {document.fac.src=iFacOn.src;}
function HideFac () {document.fac.src=iFacOff.src;}
function ShowProg () {document.prog.src=iProgOn.src;}
function HideProg () {document.prog.src=iProgOff.src;}
function ShowProf () {document.prof.src=iProfOn.src;}
function HideProf () {document.prof.src=iProfOff.src;}
function ShowStaff () {document.staff.src=iStaffOn.src;}
function HideStaff () {document.staff.src=iStaffOff.src;}
function ShowDev () {document.dev.src=iDevOn.src;}
function HideDev () {document.dev.src=iDevOff.src;}
function ShowLink () {document.link.src=iLinkOn.src;}
function HideLink () {document.link.src=iLinkOff.src;}
function ShowFprog () {document.fprog.src=iFprogOn.src;}
function HideFprog () {document.fprog.src=iFprogOff.src;}
function ShowFprog_c () {document.fprog_c.src=iFprog_cOn.src;}
function HideFprog_c () {document.fprog_c.src=iFprog_cOff.src;}