function latlongdeg(data)
{
  var f = document.LatLongDEG;
  var distance12 = 0;
  var point1 = "";
  var point2 = "";
  var lad1 = 0;
  var lad2 = 0;
  var lod1 = 0;
  var lod2 = 0;
  

  if (data=="noexample")
  {
    point1 = f.point1.value;
    point2 = f.point2.value;
    lad1 = Input(f.lad1.value);
    lad2 = Input(f.lad2.value);  
    lod1 = Input(f.lod1.value);
    lod2 = Input(f.lod2.value);
  }
  if (data=="example")
  {
    point1 = "point 1";
    point2 = "point 2";
    lad1 = 30.00;
    lad2 = 31.00;
    lod1 = 86.00;
    lod2 = 86.00;
  }

  if (data=="example"  ||  data=="restore" )
  {
    f.point1.value = point1;
    f.point2.value = point2;
    f.lad1.value = lad1;
    f.lad2.value = lad2;
    f.lod1.value = lod1;
    f.lod2.value = lod2;
    f.unit1.selectedIndex = 3;

  }


  if (data=="clear") {clearAll(f); return;}


  //get unit selections
  var unitout = f.unit1.options[f.unit1.selectedIndex].value

  ucf = 1.;
  //convert units
  if (unitout=="kilometers") ucf = 1.;
  if (unitout=="miles") ucf = 1000./5280./0.3048;
  if (unitout=="nautical miles") ucf = 1000./6076.1/0.3048;
  if (unitout=="meters") ucf = 1000.;
  if (unitout=="feet") ucf = 1000./0.3048;

  //calculate distance between the two points
  p1=new point(new deg(lad1),new deg(lod1));
  p2=new point(new deg(lad2),new deg(lod2));
  distance12 = distance(p1,p2) * ucf;
 

  f.distance12.value=Num2String(distance12,6,-15,15,-5,5); 


}
<!-- end ll-deg_1.js -->