A=new Image();
A.src="images/sd1.gif";
B=new Image();
B.src="images/sd2.gif";
    function a(){document["naags1"].src=B.src;}
    function b(){document["naags1"].src=A.src;}

C=new Image();
C.src="images/cd1.gif";
D=new Image();
D.src="images/cd2.gif";
    function c(){document["naags2"].src=D.src;}
    function d(){document["naags2"].src=C.src;}

E=new Image();
E.src="images/acd1.gif";
F=new Image();
F.src="images/acd2.gif";
    function e(){document["naags3"].src=F.src;}
    function f(){document["naags3"].src=E.src;}

G=new Image();
G.src="images/cond1.gif";
H=new Image();
H.src="images/cond2.gif";
    function g(){document["naags4"].src=H.src;}
    function h(){document["naags4"].src=G.src;}

K=new Image();
K.src="images/iron1.gif";
L=new Image();
L.src="images/iron2.gif";
    function k(){document["naags5"].src=L.src;}
    function l(){document["naags5"].src=K.src;}

M=new Image();
M.src="images/export1.gif";
N=new Image();
N.src="images/export2.gif";
    function m(){document["naags6"].src=N.src;}
    function n(){document["naags6"].src=M.src;}

M1=new Image();
M1.src="images/coal1.gif";
N1=new Image();
N1.src="images/coal2.gif";
    function m1(){document["naags7"].src=N1.src;}
    function n1(){document["naags7"].src=M1.src;}
	
	
	
	
O=new Image();
O.src="images/spices1.gif";
P=new Image();
P.src="images/spices2.gif";
    function o(){document["naags8"].src=P.src;}
    function p(){document["naags8"].src=O.src;}