function addSub()
{
    var num = getNumOfSubs();
    if (num < 10)
        num++;
    setNumOfSubs(num);
    showSubs(num);
    location.href = "#asub" + num;
}

function removeSub()
{
    var num = getNumOfSubs();
    if (num > 1)
        num--;
    setNumOfSubs(num);
    showSubs(num);
    location.href = "#asub" + num;
}

function showSubs(num)
{
    for (var i = 2; i < 11; i++)
    {
        var sub = document.getElementById("sub" + i + "Display");
        var sep = document.getElementById("sub" + i + "Sep");
        
        if (i <= num)
        {
            sub.style.display = "";
            sep.style.display = "";
        }
        else
        {
            sub.style.display = "none";
            sep.style.display = "none";
        }
    }
}

function getNumOfSubs()
{
     return NumOfSubs.value;
}

function setNumOfSubs(num)
{
    NumOfSubs.value = num;
}

showSubs(NumOfSubs.value);