Jacascript assistance..

Hey guys...

I'm seeking some assistance with a simple greasemonkey script.
This isn't all of the script but just the portion I believe I need modified. The last part of the script "if (radios>2)" it obviously detects greater then 2 radio buttons and selects the 2nd radio as a YES.

What I need is when it finds greater than 2 radials, I need it to select not just one but 3 or 4 YES radio leaving the rest as NO like it does.

Any help will be greatly appreciated. Thanks!

if(inputs.type=="radio")
{
if(!foundradio)
{
firstradio = i;
foundradio = true;
}
radios++;
if(inputs.value.toLowerCase()=="no")
{
inputs.checked = true;
inputs.click();
document.body.focus();
}
else
{
inputs.checked=true;
}
}

}
if (radios>2)
{
inputs[firstradio+2].checked=true;

}