function ClickTab(tab)
{
    document.theForm.action = "ntaselector.asp";
    document.theForm.tab.value = tab;
    document.theForm.submit();
    return false;
}

function ClickClear(tab)
{
    document.theForm.action = "ntaselector.asp";
    document.theForm.tab.value = tab;
    document.theForm.cleared.value = '1';
    document.theForm.submit();
    return false;
}