+ else if ( what.value == 'specific' ) {
+ document.getElementById('payment_amount_row').style.display = 'block';
+ document.getElementById('invoice_row').style.display = 'none';
+ document.getElementById('<% $opt{prefix} %>invoice').value = 'select';
+ document.getElementById('amount').value = '0.00';
+ document.getElementById('amount').disabled = false;
+ if (document.getElementById('ajax_surcharge_cell')) {
+ document.getElementById('ajax_surcharge_cell').innerHTML = '<FONT SIZE="+1">A credit card surcharge of <% $money_char %>0.00 is included in this payment</FONT>';
+ }
+ }