A=new Image();
A.src="images/about1.gif";
B=new Image();
B.src="images/about2.gif";
    function a(){document["naags1"].src=B.src;}
    function b(){document["naags1"].src=A.src;}

C=new Image();
C.src="images/programs1.gif";
D=new Image();
D.src="images/programs2.gif";
    function c(){document["naags2"].src=D.src;}
    function d(){document["naags2"].src=C.src;}

E=new Image();
E.src="images/cc1.gif";
F=new Image();
F.src="images/cc2.gif";
    function e(){document["naags3"].src=F.src;}
    function f(){document["naags3"].src=E.src;}

G=new Image();
G.src="images/dc1.gif";
H=new Image();
H.src="images/dc2.gif";
    function g(){document["naags4"].src=H.src;}
    function h(){document["naags4"].src=G.src;}

K=new Image();
K.src="images/art1.gif";
L=new Image();
L.src="images/art2.gif";
    function k(){document["naags5"].src=L.src;}
    function l(){document["naags5"].src=K.src;}

M=new Image();
M.src="images/who1.gif";
N=new Image();
N.src="images/who2.gif";
    function m(){document["naags6"].src=N.src;}
    function n(){document["naags6"].src=M.src;}

O=new Image();
O.src="images/taruni1.gif";
P=new Image();
P.src="images/taruni2.gif";
    function o(){document["naags7"].src=P.src;}
    function p(){document["naags7"].src=O.src;}

Q=new Image();
Q.src="images/tjobs1.gif";
R=new Image();
R.src="images/tjobs2.gif";
    function q(){document["naags8"].src=R.src;}
    function r(){document["naags8"].src=Q.src;}

Q1=new Image();
Q1.src="images/tmarriages1.gif";
R1=new Image();
R1.src="images/tmarriages2.gif";
    function q1(){document["naags9"].src=R1.src;}
    function r1(){document["naags9"].src=Q1.src;}