function stripNum(num) {

var iPercent
var iDollar
var iSpace
var iComma
var numLength = num.length

//lalalla Line #114

if(numLength > 0) {

   num=num.toString();

   iPercent = num.indexOf("%");
   if(iPercent >= 0) {
      num=num.substring(0,iPercent) + "" + num.substring(iPercent + 1,numLength);
      numLength=num.length;
      }
   iDollar = num.indexOf("£");
   if(iDollar >= 0) {
      num=num.substring(0,iDollar) + "" + num.substring(iDollar + 1,numLength);
      numLength=num.length;
      }
   iSpace = num.indexOf(" ");
   if(iSpace >= 0) {
      num=num.substring(0,iSpace) + "" + num.substring(iSpace + 1,numLength);
      numLength=num.length;
      }
   iComma = num.indexOf(",");
   if(iComma >= 0) {
      while(iComma >=1) {
         num=num.substring(0,iComma) + "" + num.substring(iComma + 1,numLength);
         numLength=num.length;
         iComma = num.indexOf(",");
      }
      }

      num = eval(num);


} else {

num = 0;

}

return num;

}

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;
}

//*******************************************
//Savings Goal Calculator
//1998 Daniel C. Peterson ALL RIGHTS RESERVED
//Created: 08/21/1998
//Last Modified: 07/02/2002
//This script may not be copied, edited or reproduced
//without express written permission from
//Daniel C. Peterson of Web Winder Website Services
//For commercial use rates, contact:
//Web Winder Website Services
//P.O. Box 11
//Bemidji, MN  56619
//dan@webwinder.com
//http://www.webwinder.com
//Commercial User License #:___________
//*******************************************

function computeForm(form) {

if(form.downPay.value == "" || form.downPay.value == 0) {
   alert("Please enter an amount in Line #1");
   form.downPay.focus();
   } else
      if(form.intRate.value == "" || form.intRate.value == 0) {
      alert("Please enter an amount in Line #3");
      form.intRate.focus();
   } else
      if(form.numYears.value == "" || form.numYears.value == 0) {
      alert("Please enter an amount in Line #4");
      form.numYears.focus();
   } else {

var VdownPay = stripNum(form.downPay.value);

var VsaveBal = stripNum(form.saveBal.value);

var VnumYears = stripNum(form.numYears.value);

var intRate = stripNum(form.intRate.value);

if (intRate >= 1.0) {
   intRate = intRate / 100.0;
} 

//FIGURE FUTURE VALUE OF PRESENT SAVINGS

    var factor1 = eval(intRate) + eval(1);

    var denom1 = 1;

    var count1 = 0;

     while(count1 < VnumYears) {
        denom1 = denom1 * factor1;
        count1 = eval(count1) + eval(1);
      }

    var VsaveFV = VsaveBal * denom1;

    form.saveFV.value = "£" + formatNumber(VsaveFV);

    var VsaveGap = eval(VdownPay) - eval(VsaveFV);

    form.saveGap.value = "£" + formatNumber(VsaveGap);

//FIGURE PRESENT VALUE OF ADJUSTED SAVINGS GAP
   
   var count2 = 0;

   var intRate2 = intRate / 12;

   var numMonths = VnumYears * 12;

   var factor2 = eval(1) + eval(intRate2);

   var denom2 = 1;
    
    while(count2 < numMonths) {
       denom2 = denom2 * factor2;
        count2 = eval(count2) + eval(1);
        }

    var Vpv = eval(denom2) - eval(1);

    Vpv = intRate2 / Vpv;

    Vpv = Vpv * VsaveGap;

    form.moSave.value = "£" + formatNumber(Vpv);


//END VARIFICATION IF STATEMENT
   }
    
}

function noEntry(elem) {

eval("document.savings." + elem + ".focus();");

}