ia1 = new Image();
ia2 = new Image();
ia3 = new Image();
ia1.src = "static/button/index1.gif";
ia2.src = "static/button/index2.gif";
ia3.src = "static/button/index3.gif";
function a1() { document.a.src = ia1.src; }
function a2() { document.a.src = ia2.src; }
function a3() { document.a.src = ia3.src; }

ib1 = new Image();
ib2 = new Image();
ib3 = new Image();
ib1.src = "static/button/service1.gif";
ib2.src = "static/button/service2.gif";
ib3.src = "static/button/service3.gif";
function b1() { document.b.src = ib1.src; }
function b2() { document.b.src = ib2.src; }
function b3() { document.b.src = ib3.src; }

ic1 = new Image();
ic2 = new Image();
ic3 = new Image();
ic1.src = "static/button/bau1.gif";
ic2.src = "static/button/bau2.gif";
ic3.src = "static/button/bau3.gif";
function c1() { document.c.src = ic1.src; }
function c2() { document.c.src = ic2.src; }
function c3() { document.c.src = ic3.src; }

id1 = new Image();
id2 = new Image();
id3 = new Image();
id1.src = "static/button/projekt1.gif";
id2.src = "static/button/projekt2.gif";
id3.src = "static/button/projekt3.gif";
function d1() { document.d.src = id1.src; }
function d2() { document.d.src = id2.src; }
function d3() { document.d.src = id3.src; }

ie1 = new Image();
ie2 = new Image();
ie3 = new Image();
ie1.src = "static/button/haeuser1.gif";
ie2.src = "static/button/haeuser2.gif";
ie3.src = "static/button/haeuser3.gif";
function e1() { document.e.src = ie1.src; }
function e2() { document.e.src = ie2.src; }
function e3() { document.e.src = ie3.src; }

if1 = new Image();
if2 = new Image();
if3 = new Image();
if1.src = "static/button/kontakt1.gif";
if2.src = "static/button/kontakt2.gif";
if3.src = "static/button/kontakt3.gif";
function f1() { document.f.src = if1.src; }
function f2() { document.f.src = if2.src; }
function f3() { document.f.src = if3.src; }

ig1 = new Image();
ig2 = new Image();
ig3 = new Image();
ig1.src = "static/button/finanz1.gif";
ig2.src = "static/button/finanz2.gif";
ig3.src = "static/button/finanz3.gif";
function g1() { document.g.src = ig1.src; }
function g2() { document.g.src = ig2.src; }
function g3() { document.g.src = ig3.src; }

ih1 = new Image();
ih2 = new Image();
ih3 = new Image();
ih1.src = "static/button/ansicht1.gif";
ih2.src = "static/button/ansicht2.gif";
ih3.src = "static/button/ansicht3.gif";
function h1() { document.h.src = ih1.src; }
function h2() { document.h.src = ih2.src; }
function h3() { document.h.src = ih3.src; }

ii1 = new Image();
ii2 = new Image();
ii3 = new Image();
ii1.src = "static/button/lageplan1.gif";
ii2.src = "static/button/lageplan2.gif";
ii3.src = "static/button/lageplan3.gif";
function i1() { document.i.src = ii1.src; }
function i2() { document.i.src = ii2.src; }
function i3() { document.i.src = ii3.src; }

ij1 = new Image();
ij2 = new Image();
ij3 = new Image();
ij1.src = "static/button/grundriss1.gif";
ij2.src = "static/button/grundriss2.gif";
ij3.src = "static/button/grundriss3.gif";
function j1() { document.j.src = ij1.src; }
function j2() { document.j.src = ij2.src; }
function j3() { document.j.src = ij3.src; }

ik1 = new Image();
ik2 = new Image();
ik3 = new Image();
ik1.src = "static/button/uebersicht1.gif";
ik2.src = "static/button/uebersicht2.gif";
ik3.src = "static/button/uebersicht3.gif";
function k1() { document.k.src = ik1.src; }
function k2() { document.k.src = ik2.src; }
function k3() { document.k.src = ik3.src; }

io1 = new Image();
io2 = new Image();
io3 = new Image();
io1.src = "static/button/uebersicht1.gif";
io2.src = "static/button/uebersicht2.gif";
io3.src = "static/button/uebersicht3.gif";
function o1() { document.o.src = io1.src; }
function o2() { document.o.src = io2.src; }
function o3() { document.o.src = io3.src; }

il1 = new Image();
il2 = new Image();
il3 = new Image();
il1.src = "static/button/haus1.gif";
il2.src = "static/button/haus2.gif";
il3.src = "static/button/haus3.gif";
function l1() { document.l.src = il1.src; }
function l2() { document.l.src = il2.src; }
function l3() { document.l.src = il3.src; }

im1 = new Image();
im2 = new Image();
im3 = new Image();
im1.src = "static/button/keller1.gif";
im2.src = "static/button/keller2.gif";
im3.src = "static/button/keller3.gif";
function m1() { document.m.src = im1.src; }
function m2() { document.m.src = im2.src; }
function m3() { document.m.src = im3.src; }

in1 = new Image();
in2 = new Image();
in3 = new Image();
in1.src = "static/button/kamin1.gif";
in2.src = "static/button/kamin2.gif";
in3.src = "static/button/kamin3.gif";
function n1() { document.n.src = in1.src; }
function n2() { document.n.src = in2.src; }
function n3() { document.n.src = in3.src; }

ip1 = new Image();
ip2 = new Image();
ip3 = new Image();
ip1.src = "static/button/ansicht1.gif";
ip2.src = "static/button/ansicht2.gif";
ip3.src = "static/button/ansicht3.gif";
function p1() { document.p.src = ip1.src; }
function p2() { document.p.src = ip2.src; }
function p3() { document.p.src = ip3.src; }

iq1 = new Image();
iq2 = new Image();
iq3 = new Image();
iq1.src = "static/button/grundriss1.gif";
iq2.src = "static/button/grundriss2.gif";
iq3.src = "static/button/grundriss3.gif";
function q1() { document.q.src = iq1.src; }
function q2() { document.q.src = iq2.src; }
function q3() { document.q.src = iq3.src; }

ir1 = new Image();
ir2 = new Image();
ir3 = new Image();
ir1.src = "static/button/uebersicht1.gif";
ir2.src = "static/button/uebersicht2.gif";
ir3.src = "static/button/uebersicht3.gif";
function r1() { document.r.src = ir1.src; }
function r2() { document.r.src = ir2.src; }
function r3() { document.r.src = ir3.src; }