function formatNum(Vnum) {

   if(Vnum > 99000000) {
   alert("Sorry, this will not generate numbers larger that 99 million.");
   focus();
   } else {
   
   var V10million = parseInt(Vnum / 10000000);

   var V1million = (Vnum % 10000000)  / 1000000;
      if(V1million / 1000000 == 1) {
      V1million = 1;
      } else
      if(V1million < 1) {
      V1million = "0";
     } else {
      V1million = parseInt(V1million,10);
     }

    var V100thousand = (Vnum % 1000000)  / 100000;
      if(V100thousand / 100000 == 1) {
      V100thousand = 1;
      } else
      if(V100thousand < 1) {
      V100thousand = "0";
     } else {
      V100thousand = parseInt(V100thousand,10);
     }

   var V10thousand = (Vnum % 100000)  / 10000;
      if(V10thousand / 10000 == 1) {
      V10thousand = 1;
      } else
      if(V10thousand < 1) {
      V10thousand = "0";
      } else {
      V10thousand = parseInt(V10thousand,10);
      }

   var V1thousand = (Vnum % 10000)  / 1000;
      if(V1thousand / 1000 == 1) {
      V1thousand = 1;
      } else
      if(V1thousand < 1) {
      V1thousand = "0";
     } else {
      V1thousand = parseInt(V1thousand,10);
     }

   var Vhundreds = (Vnum % 1000)  / 100;
      if(Vhundreds / 100 == 1) {
      Vhundreds = 1;
      } else
      if(Vhundreds < 1) {
      Vhundreds = "0";
     } else {
      Vhundreds = parseInt(Vhundreds,10);
     }

   var Vtens = (Vnum % 100)  / 10;
      if(Vtens / 10 == 1) {
      Vtens = 1;
      } else
      if(Vtens < 1) {
      Vtens = "0";
     } else {
      Vtens = parseInt(Vtens,10);
     }

   var Vones = (Vnum % 10)  / 1;
      if(Vones / 1 == 1) {
      Vones = 1;
      } else
      if(Vones < 1) {
      Vones = "0";
     } else {
      Vones = parseInt(Vones,10);
     }

  //START UPGRADE
var Vcents = 0;

if(Vnum % 1 * 100 < 1) {
   Vcents = 0;
   } else {
   Vcents = parseInt(((eval(Vnum % 1) * 100)),10);
   }
//END UPGRADE

 if(Vcents < 1) {
  Vcents = "00";
  }
  else
  if(Vcents % 10 == 0) {
  Vcents = Vcents + "0";
  }
  else
  if(Vcents % 10 == Vcents) {
  Vcents = "0" + Vcents;
  } else {
  Vcents = Vcents;
  }

  if(Vcents == "900") {
  Vcents = "90";
  } else
  if(Vcents == "800") {
  Vcents = "80";
  } else 
  if(Vcents == "700") {
  Vcents = "70";
  } else 
  if(Vcents == "600") {
  Vcents = "60";
  } else 
  if(Vcents == "500") {
  Vcents = "50";
  } else 
  if(Vcents == "400") {
  Vcents = "40";
  } else 
  if(Vcents == "300") {
  Vcents = "30";
  } else
  if(Vcents == "200") {
  Vcents = "20";
  } else
  if(Vcents == "100") {
  Vcents = "10";
  } else {
  Vcents = Vcents;
  }

   
   var Vformat = "";

   if(Vnum >= 10000000) {
   Vformat = (V10million + "" + V1million + "," + V100thousand + "" + V10thousand + "" + V1thousand + "," + Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 1000000) {
   Vformat = (V1million + "," + V100thousand + "" + V10thousand + "" + V1thousand + "," + Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 100000) {
   Vformat = (V100thousand + "" + V10thousand + "" + V1thousand + "," + Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 10000) {
   Vformat = (V10thousand + "" + V1thousand + "," + Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 1000) {
   Vformat = (V1thousand + "," + Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 100) {
   Vformat = (Vhundreds + "" + Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 10) {
   Vformat = (Vtens + "" + Vones + "." + Vcents);
   }
   else
   if(Vnum >= 1) {
   Vformat = (Vones + "." + Vcents);
   } else {
   Vformat = ("0." + Vcents);
   }

  return Vformat;

  }
}




function computeForm(form) {

if(form.principal.value == 0 || form.principal.value == "") {
   alert("Please enter the amount you'll be financing.");
   form.principal.focus();
   } else
if(form.interest.value == 0 || form.interest.value == "") {
   alert("Please enter the annual interest rate.");
   form.interest.focus();
   } else {


    var i = form.interest.value;

    if (i > 1.0) {

        i = i / 100.0;

        

    }

if(i < .03125 || i > .19) {
   alert("Please enter an interest rate between 3.125 and 19%.")
   form.interest.focus();
    return;
   }

    i /= 12;

   noYears = form.noYears.value;

    var noYears = noYears * 12;

    var pow = 1;

    for (var j = 0; j < noYears; j++)

        pow = pow * (1 + i);

     var Vpayment = (form.principal.value * pow * i) / (pow - 1);

    form.payment.value = "$" + formatNum(Vpayment);

    var Vtotalint = ((Vpayment * noYears)
    - form.principal.value);

   }

}



function clearForm(form)

{

    form.payment.value = "";

    form.interest.value = "";

    form.principal.value = "";

}