ai = new Image();
ai.src = "a1.gif";
bi = new Image();
bi.src = "a2.gif";
ci = new Image();
ci.src = "a3.gif";
di = new Image();
di.src = "a4.gif";
ei = new Image();
ei.src = "a5.gif";
fi = new Image();
fi.src = "a6.gif";
gi = new Image();
gi.src = "a7.gif";
hi = new Image();
hi.src = "a8.gif";
ii = new Image();
ii.src = "ar.gif";
ji = new Image();
ji.src = "at.gif";
ki = new Image();
ki.src = "ae.gif";
li = new Image();
li.src = "a9.gif";
mi = new Image();
mi.src = "a10.gif";
ni = new Image();
ni.src = "a12.gif";
oi = new Image();
oi.src = "a13.jpg";
pi = new Image();
pi.src = "a14.gif";
ri = new Image();
ri.src = "ap.gif";
si = new Image();
si.src = "a15.gif";
ti = new Image();
ti.src = "a16.gif";
vi = new Image();
vi.src = "av.gif";
ui = new Image();
ui.src = "ak.gif";
wi = new Image();
wi.src = "a17.gif";
qi = new Image();
qi.src = "a18.gif";


aa = new Image();
aa.src = "p1.jpg";


function swi (imgname, target)
{
 document.images[imgname].src = target.src;
}