// JScript File
function HideAddressShowFax()
{
    var address = document.getElementById('usMail');
    var fax = document.getElementById('faxNumber');
    
    address.style.display='none';
    fax.style.display='block';
}

function HideFaxShowAddress()
{
    var address = document.getElementById('usMail');
    var fax = document.getElementById('faxNumber');
    
    address.style.display='block';
    fax.style.display='none';
}

function UncheckInvoiceAndStatement()
{
    var invoiceCheckBox = document.getElementById(invoiceCheckboxId);
    var statementCheckBox = document.getElementById(statementCheckboxId);
    
    invoiceCheckBox.checked = false;
    statementCheckBox.checked = false;
}

function UncheckPaper()
{
    var paperCheckBox = document.getElementById(paperCheckboxId);    
    
    paperCheckBox.checked = false;    
}

function ShowElectronicEmail()
{
    var electronicEmail = document.getElementById('statementEmailAddress');       
    electronicEmail.style.display='block';    
}

function DetermineToHideOrDisplayFields()
{        
    var paperCheckBox = document.getElementById(paperCheckboxId);
    var invoiceCheckBox = document.getElementById(invoiceCheckboxId);
    var statementCheckBox = document.getElementById(statementCheckboxId);

    if (paperCheckBox == null || invoiceCheckBox == null || statementCheckBox == null) return;
        
    if (statementCheckBox.checked || invoiceCheckBox.checked)
    {        
        ShowElectronicEmail();
        paperCheckBox.checked = false;
    }
    else if (paperCheckBox.checked)
    {        
        invoiceCheckBox.checked = false;
        statementCheckBox.checked = false;
    }    
}