var groupTotals = {}

groupTotals.Bluegroup = 10;
groupTotals.Month = 10;

function toggle( group, index )
{
var list = [];
var i = groupTotals[group];

while( i > 0 )
{
var o = document.getElementById( group + i );

if( i == index )
{
o.className = "visible";
}
else
{
o.className = "hidden";
}

i --;
}
}