function subdelay1()
{
a=setTimeout("document.getElementById('sub1').style.display='none'",100);
}

function subshow1()
{
document.getElementById('sub1').style.display='inline';
clearTimeout(a);

}

function subdelay2()
{
b=setTimeout("document.getElementById('sub2').style.display='none'",100);
}

function subshow2()
{
document.getElementById('sub2').style.display='inline';
clearTimeout(b);

}