// pmt_result
function pmt_result(pmt_returned_value){
 document.getElementById('rate_value_field').value=roundNumber(pmt_returned_value,2);
}
// do_pmt
function do_pmt(){
 x_pmt(document.getElementById('usury_field').value/100/12,document.getElementById('months_field').value,document.getElementById('loan_field').value*80/100,0,pmt_result);
}
// change_usury_result
function change_usury_result(change_usury_returned_value){
 document.getElementById('usury_field').value=change_usury_returned_value;
}
// do_change_usury
function do_change_usury(){
 x_change_usury(document.getElementById('currency_field').value,document.getElementById('months_field').value,change_usury_result);
}
// send_lead_result
function send_lead_result(send_lead_returned_value){
 document.getElementById('send_lead_result_field').value=send_lead_returned_value;
}
// do_send_lead
function do_send_lead(){
 x_send_lead(document.getElementById('complete_name_field').value,document.getElementById('locality_field').value,document.getElementById('home_phone_field').value,document.getElementById('mobile_phone_field').value,document.getElementById('office_phone_field').value,document.getElementById('email_field').value,document.getElementById('observation_field').value,send_lead_result);
}