function show(id)
{
if (id==undefined) {
var theDate = new Date();
y=(theDate.getYear() < 200 ? theDate.getYear() + 1900 : theDate.getYear());
id=y;
} else { y=id; }

p=document.getElementById('pyear');
n=document.getElementById('nyear');
pr=y-1; nr=pr+2;

p.innerHTML=(document.getElementById(pr)!=undefined ? '<a href="javascript:show(\''+pr+'\');">'+pr+'</a>' : pr);
n.innerHTML=(document.getElementById(nr)!=undefined ? '<a href="javascript:show(\''+nr+'\');">'+nr+'</a>' : nr);

s=document.getElementById(id);
a=s.innerHTML;
document.getElementById('ccc').innerHTML=a;
}