function disable_form() {
  document.getElementById("form_firstname").disabled=true;
  document.getElementById("form_firstname").style.background = '#eeeeee';
  document.getElementById("form_lastname").disabled=true;
  document.getElementById("form_lastname").style.background = '#eeeeee';
  document.getElementById("form_address1").disabled=true;
  document.getElementById("form_address1").style.background = '#eeeeee';
  document.getElementById("form_address2").disabled=true;
  document.getElementById("form_address2").style.background = '#eeeeee';
  document.getElementById("form_city").disabled=true;
  document.getElementById("form_city").style.background = '#eeeeee';
  document.getElementById("form_state").disabled=true;
  document.getElementById("form_state").style.background = '#eeeeee';
  document.getElementById("form_zip").disabled=true;
  document.getElementById("form_zip").style.background = '#eeeeee';
  document.getElementById("form_phonea").disabled=true;
  document.getElementById("form_phonea").style.background = '#eeeeee';
  document.getElementById("form_phoneb").disabled=true;
  document.getElementById("form_phoneb").style.background = '#eeeeee';
}
function enable_form() {
  document.getElementById("form_firstname").disabled=false;
  document.getElementById("form_firstname").style.background = '#ffffff';
  document.getElementById("form_lastname").disabled=false;
  document.getElementById("form_lastname").style.background = '#ffffff';
  document.getElementById("form_address1").disabled=false;
  document.getElementById("form_address1").style.background = '#ffffff';
  document.getElementById("form_address2").disabled=false;
  document.getElementById("form_address2").style.background = '#ffffff';
  document.getElementById("form_city").disabled=false;
  document.getElementById("form_city").style.background = '#ffffff';
  document.getElementById("form_state").disabled=false;
  document.getElementById("form_state").style.background = '#ffffff';
  document.getElementById("form_zip").disabled=false;
  document.getElementById("form_zip").style.background = '#ffffff';
  document.getElementById("form_phonea").disabled=false;
  document.getElementById("form_phonea").style.background = '#ffffff';
  document.getElementById("form_phoneb").disabled=false;
  document.getElementById("form_phoneb").style.background = '#ffffff';
}