//*******************************************
//DO NOT REMOVE THIS COPYWRITE INFO!
//Lifetime Earnings Calculator
//2000 Daniel C. Peterson ALL RIGHTS RESERVED
//Created: 01/13/2000
//Last Modified: 05/20/2002
//This script may not be copied, edited, distributed or reproduced
//without express written permission from
//Daniel C. Peterson of Web Winder Website Services
//For commercial use rates, contact:
//Dan Peterson:
//Web Winder Website Services
//P.O. Box 11
//Bemidji, MN  56619
//dan@webwinder.com
//http://www.webwinder.com
//Commercial User Licence #:5782-1237-21-1198
//Commercial Licence Date:2008-09-11
//*******************************************



function stripNum(num) {

   num=num.toString();


   var len = num.length;
   var rnum = "";
   var test = "";
   var j = 0;

   var b = num.substring(0,1);
   if(b == "-") {
      rnum = "-";
   }

   for(i = 0; i <= len; i++) {

      b = num.substring(i,i+1);

      if(b == "0" || b == "1" || b == "2" || b == "3" || b == "4" || b == "5" || b == "6" || b == "7" || b == "8" || b == "9" || b == ".") {
         rnum = rnum + "" + b;

      }

   }

   if(rnum == "" || rnum == "-") {
      rnum = 0;
   }

   rnum = Number(rnum);

   return rnum;

}



function formatNumber(num) {

var isNeg=0;

    if(num < 0) {
       num=num*-1;
       isNeg=1;
    }

    
	onum=Math.round(num*100)/100;
		
	integer=Math.floor(onum);

	if (Math.ceil(onum) == integer) {
		decimal="00";
	} else{
		decimal=Math.round((onum-integer)*100)
	}
	decimal=decimal.toString();
	if (decimal.length<2) decimal="0"+decimal;

	integer=integer.toString();
	var tmpnum="";
	var tmpinteger="";
	var y=0;

	for (x=integer.length;x>0;x--) {
		tmpnum=tmpnum+integer.charAt(x-1);
		y=y+1;
		if (y==3 & x>1) {
			tmpnum=tmpnum+",";
			y=0;
		}
	}

	for (x=tmpnum.length;x>0;x--) {
		tmpinteger=tmpinteger+tmpnum.charAt(x-1);
	}
		
	finNum=tmpinteger+"."+decimal;

    if(isNeg == 1) {
       finNum = "-" + finNum;
    }

	return finNum;
}


function computeForm(form) {

if(form.age.value.length == 0) {
   alert("Please enter your current age.");
   form.age.focus();
   } else
if(form.retireAge.value.length == 0) {
   alert("Please enter the age you plan to retire at.");
   form.retireAge.focus();
   } else
if(form.income.value.length == 0) {
   alert("Please enter your current gross annual income.");
   form.income.focus();
   } else {

var Vage = stripNum(form.age.value);
var VretireAge = stripNum(form.retireAge.value);
var Vincome = stripNum(form.income.value);

if(form.income2.value.length == 0) {
   var Vincome2 = 0;
   } else {
   var Vincome2 = stripNum(form.income2.value);
   }

var Vinflate = eval(form.inflate.selectedIndex / 100) + eval(1);

var VnoYears = eval(VretireAge) - eval(Vage);
var VannualIncome = eval(Vincome) + eval(Vincome2);

var count = 1;
var VlifeEarn = VannualIncome;

while(count < VnoYears) {
   VannualIncome = VannualIncome * Vinflate;
   VlifeEarn = eval(VlifeEarn) + eval(VannualIncome);
   count = eval(count) + eval(1);
   }

//var VbaseYear = VannualIncome;
//var VnewAnnualIncome = 0;
//while(count < VnoYears) {
//   Vinflate = Vinflate * (eval(Vinflate) + eval(1));
//   VnewAnnualIncome = VbaseYear * (eval(Vinflate) + eval(1));
//   VlifeEarn = eval(VlifeEarn) + eval(VnewAnnualIncome);
//   count = eval(count) + eval(1);
//   }

form.endIncome.value = "$" + formatNumber(VannualIncome);
form.noYears.value = VnoYears;
form.lifeEarn.value = "$" + formatNumber(VlifeEarn);

  }

}