var surcharge_cell = document.getElementById('ajax_surcharge_cell');
var surcharge = ((what.value - <% $surcharge_flatfee %>) * <% $surcharge_percentage %>) + <% $surcharge_flatfee %>;
surcharge_cell.innerHTML = '<FONT SIZE="+1">A credit card surcharge of ' + surcharge.toFixed(2) + ' is included in this payment</FONT>';
var surcharge_cell = document.getElementById('ajax_surcharge_cell');
var surcharge = ((what.value - <% $surcharge_flatfee %>) * <% $surcharge_percentage %>) + <% $surcharge_flatfee %>;
surcharge_cell.innerHTML = '<FONT SIZE="+1">A credit card surcharge of ' + surcharge.toFixed(2) + ' is included in this payment</FONT>';