bNS4 = (document.layers) ? 1 : 0;
bIE4 = (document.all) ? 1 : 0;
bDOM = (document.getElementById) ? 1 : 0;

function ShowYearly()
{
    hideALL();

    if(bNS4)
    {
        document.layers['LYearly'].visibility="show";
    }
    else
    {
        if(bDOM)
        {
            document.getElementById('LYearly').style.visibility="visible";
        }
        else
        {
            document.all['LYearly'].style.visibility="visible";
        }
    }
}

function ShowMonthly()
{
    hideALL();

    if(bNS4)
    {
        document.layers['LMonthly'].visibility="show";
    }
    else
    {
        if(bDOM)
        {
            document.getElementById('LMonthly').style.visibility="visible";
        }
        else
        {
            document.all['LMonthly'].style.visibility="visible";
        }
    }
}

function hideALL()
{
    if(bNS4)
    {
        document.layers['LYearly'].visibility ="hide";
        document.layers['LMonthly'].visibility  ="hide";
    }
    else
    {
        if(bDOM)
        {
            document.getElementById('LYearly').style.visibility ="hidden";
            document.getElementById('LMonthly').style.visibility  ="hidden";
        }
        else
        {
            document.all['LYearly'].style.visibility ="hidden";
            document.all['LMonthly'].style.visibility  ="hidden";
        }
    }
}

function SetPaymentType()
{
   var selectedValue = document.YearlyForm.selectPayment.value;
   
   if(selectedValue == 'Yearly')
   {
      ShowYearly();
   }
   else
   {
      ShowMonthly();
   }

}