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 computeMonthlyPayment(prin, numPmts, intRate) {
var pmtAmt = 0;
if(intRate == 0) {
pmtAmt = prin / numPmts;
} else {
if (intRate >= 1.0) {
intRate = intRate / 100.0;
}
intRate /= 12;
var pow = 1;
for (var j = 0; j < numPmts; j++)
pow = pow * (1 + intRate);
pmtAmt = (prin * pow * intRate) / (pow - 1);
}
return pmtAmt;
}
function computeFixedInterestCost(principal,intRate, pmtAmt) { 
var i = eval(intRate);
if(i >= 1) {
i /= 100;
}
i /= 12;
var prin = eval(principal);
var intPort = 0;
var accumInt = 0;
var prinPort = 0;
var pmtCount = 0;
var testForLast = 0;
//CYCLES THROUGH EACH PAYMENT OF GIVEN DEBT
while(prin > 0) {
testForLast = (prin * (1 +i));
if(pmtAmt < testForLast) {
intPort = prin *i;
accumInt = eval(accumInt) + eval(intPort);
prinPort = eval(pmtAmt) - eval(intPort);
prin = eval(prin) - eval(prinPort);
} else {
//DETERMINE FINAL PAYMENT AMOUNT
intPort = prin * i;
accumInt = eval(accumInt) + eval(intPort);
prinPort = prin;
prin = 0;
}
pmtCount = eval(pmtCount) + eval(1);
if(pmtCount > 1000 || accumInt > 1000000000) {
prin = 0;
}
}
return accumInt;
}
function formatNumberDec(num, places, comma) {
var isNeg=0;
if(num < 0) {
num=num*-1;
isNeg=1;
}
var myDecFact = 1;
var myPlaces = 0;
var myZeros = "";
while(myPlaces < places) {
myDecFact = myDecFact * 10;
myPlaces = eval(myPlaces) + eval(1);
myZeros = myZeros + "0";
}
onum=Math.round(num*myDecFact)/myDecFact;
integer=Math.floor(onum);
if (Math.ceil(onum) == integer) {
decimal=myZeros;
} else{
decimal=Math.round((onum-integer)* myDecFact)
}
decimal=decimal.toString();
if (decimal.length<places) {
fillZeroes = places - decimal.length;
for (z=0;z<fillZeroes;z++) {
decimal="0"+decimal;
}
}
if(places > 0) {
decimal = "." + decimal;
}
if(comma == 1) {
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;
} else {
finNum=integer+""+decimal;
}
if(isNeg == 1) {
finNum = "-" + finNum;
 }
return finNum;
}


function fillRates(form) {
if(form.startRate.value.length == 0) {
alert("Please enter a starting interest before selecting the increment factor.");
form.startRate.focus();
} else {
var VstartRate = stripNum(form.startRate.value);
if(VstartRate < 1) {
vstartRate = VstartRate * 100;
}
var Vincrement = form.increment.options[form.increment.selectedIndex].value;
var Vrate_1 = VstartRate;
form.rate_1.value = formatNumberDec(Vrate_1,3);
var Vrate_2 = eval(Vrate_1) + eval(Vincrement);
form.rate_2.value = formatNumberDec(Vrate_2,3);
var Vrate_3 = eval(Vrate_2) + eval(Vincrement);
form.rate_3.value = formatNumberDec(Vrate_3,3);
var Vrate_4 = eval(Vrate_3) + eval(Vincrement);
form.rate_4.value = formatNumberDec(Vrate_4,3);
var Vrate_5 = eval(Vrate_4) + eval(Vincrement);
form.rate_5.value = formatNumberDec(Vrate_5,3);
computeForm(form);
}
}
function computeForm(form) {
if(form.principal.value.length == 0) {
alert("Please enter the amount of the mortgage.");
form.principal.focus();
} else
if(form.numYears.value == "") {
alert("Please enter mortgage's termin years.");
form.numYears.focus();
} else {
var Vprin = stripNum(form.principal.value);
var VnumYears = stripNum(form.numYears.value);
var Vrate_1 = stripNum(form.rate_1.value);
var Vrate_2 = stripNum(form.rate_2.value);
var Vrate_3 = stripNum(form.rate_3.value);
var Vrate_4 = stripNum(form.rate_4.value);
var Vrate_5 = stripNum(form.rate_5.value);
var Vmonths = VnumYears * 12;
var VmoPmt_1 = computeMonthlyPayment(Vprin, Vmonths, Vrate_1);
form.moPmt_1.value = "$" + formatNumberDec(VmoPmt_1,0,1);
var VmoPmt_2 = computeMonthlyPayment(Vprin, Vmonths, Vrate_2);
form.moPmt_2.value = "$" + formatNumberDec(VmoPmt_2,0,1);
var VmoPmt_3 = computeMonthlyPayment(Vprin, Vmonths, Vrate_3);
form.moPmt_3.value = "$" + formatNumberDec(VmoPmt_3,0,1);
var VmoPmt_4 = computeMonthlyPayment(Vprin, Vmonths, Vrate_4);
form.moPmt_4.value = "$" + formatNumberDec(VmoPmt_4,0,1);
var VmoPmt_5 = computeMonthlyPayment(Vprin, Vmonths, Vrate_5);
form.moPmt_5.value = "$" + formatNumberDec(VmoPmt_5,0,1);
var VtotPrin_1 = Vprin;
form.totPrin_1.value = "$" + formatNumberDec(VtotPrin_1,0,1);
var VtotPrin_2 = Vprin;
form.totPrin_2.value = "$" + formatNumberDec(VtotPrin_2,0,1);
var VtotPrin_3 = Vprin;
form.totPrin_3.value = "$" + formatNumberDec(VtotPrin_3,0,1);
var VtotPrin_4 = Vprin;
form.totPrin_4.value = "$" + formatNumberDec(VtotPrin_4,0,1);
var VtotPrin_5 = Vprin;
form.totPrin_5.value = "$" + formatNumberDec(VtotPrin_5,0,1);
var VtotInt_1 = computeFixedInterestCost(Vprin, Vrate_1, VmoPmt_1);
VtotInt_1 = Math.round(VtotInt_1);
form.totInt_1.value = "$" + formatNumberDec(VtotInt_1,0,1);
var VtotInt_2 = computeFixedInterestCost(Vprin, Vrate_2, VmoPmt_2);
VtotInt_2 = Math.round(VtotInt_2);
form.totInt_2.value = "$" + formatNumberDec(VtotInt_2,0,1);
var VtotInt_3 = computeFixedInterestCost(Vprin, Vrate_3, VmoPmt_3);
VtotInt_3 = Math.round(VtotInt_3);
form.totInt_3.value = "$" + formatNumberDec(VtotInt_3,0,1);
var VtotInt_4 = computeFixedInterestCost(Vprin, Vrate_4, VmoPmt_4);
VtotInt_4 = Math.round(VtotInt_4);
form.totInt_4.value = "$" + formatNumberDec(VtotInt_4,0,1);
var VtotInt_5 = computeFixedInterestCost(Vprin, Vrate_5, VmoPmt_5);
VtotInt_5 = Math.round(VtotInt_5);
form.totInt_5.value = "$" + formatNumberDec(VtotInt_5,0,1);
var VtotPmts_1 = eval(VtotPrin_1) + eval(VtotInt_1);
form.totPmts_1.value = "$" + formatNumberDec(VtotPmts_1,0,1);
var VtotPmts_2 = eval(VtotPrin_2) + eval(VtotInt_2);
form.totPmts_2.value = "$" + formatNumberDec(VtotPmts_2,0,1);
var VtotPmts_3 = eval(VtotPrin_3) + eval(VtotInt_3);
form.totPmts_3.value = "$" + formatNumberDec(VtotPmts_3,0,1);
var VtotPmts_4 = eval(VtotPrin_4) + eval(VtotInt_4);
form.totPmts_4.value = "$" + formatNumberDec(VtotPmts_4,0,1);
var VtotPmts_5 = eval(VtotPrin_5) + eval(VtotInt_5);
form.totPmts_5.value = "$" + formatNumberDec(VtotPmts_5,0,1);
}
}


function createReport(form) {
if(form.principal.value.length == 0) {
alert("Please enter the amount of the mortgage.");
form.principal.focus();
} else
if(form.numYears.value == "") {
alert("Please enter mortgage's termin years.");
form.numYears.focus();
} else {
computeForm(form);
var Vprin = stripNum(form.principal.value);
var VnumYears = stripNum(form.numYears.value);
var termRows = "";
termRows = ("" + termRows + "<tr><td><b>Monthly payment</b></td><td align=right><small>" + form.moPmt_1.value + "</small></td><td align=right><small>" + form.moPmt_2.value + "</small></td><td align=right><small>" + form.moPmt_3.value + "</small></td><td align=right><small>" + form.moPmt_4.value + "</small></td><td align=right><small>" + form.moPmt_5.value + "</small></td></tr>");
termRows = ("" + termRows + "<tr><td><b>Principal payments</b></td><td align=right><small>" + form.totPrin_1.value + "</small></td><td align=right><small>" + form.totPrin_2.value + "</small></td><td align=right><small>" + form.totPrin_3.value + "</small></td><td align=right><small>" + form.totPrin_4.value + "</small></td><td align=right><small>" + form.totPrin_5.value + "</small></td></tr>");
termRows = ("" + termRows + "<tr><td><b>Interest payments</b></td><td align=right><small>" + form.totInt_1.value + "</small></td><td align=right><small>" + form.totInt_2.value + "</small></td><td align=right><small>" + form.totInt_3.value + "</small></td><td align=right><small>" + form.totInt_4.value + "</small></td><td align=right><small>" + form.totInt_5.value + "</small></td></tr>");
termRows = ("" + termRows + "<tr><td><b>Total payments</b></td><td align=right><small>" + form.totPmts_1.value + "</small></td><td align=right><small>" + form.totPmts_2.value + "</small></td><td align=right><small>" + form.totPmts_3.value + "</small></td><td align=right><small>" + form.totPmts_4.value + "</small></td><td align=right><small>" + form.totPmts_5.value + "</small></td></tr>");
var part1 = ("<head><title>Mortgage Rate Comparison</title></head>" + "<body><table border=0 cellpadding=2 cellspacing=3><tr><td colspan=6 align='center'><font color='#C42E4B'><b>Mortgage Rate Comparison</b></font><hr></td></tr>");
var part2 = ("<tr><td colspan=6><b>Principal $</b>" + formatNumberDec(Vprin,0,1) + "<br><b>Term</b> " + VnumYears + " years</td></tr><tr><td><b>Interest Rate</b></td><td align='center'><b>" + form.rate_1.value + "%</b></td><td align='center'><b>" + form.rate_2.value + "%</b></td><td align='center'><b>" + form.rate_3.value + "%</b></td><td align='center'><b>" + form.rate_4.value + "%</b></td><td align='center'><b>" + form.rate_5.value + "%</b></td></tr>");
var part3 = ("" + termRows + "");
var part4 = ("</table><br><center><form method='post'><input type='button' value='Close Window' onClick='window.close()'></form></center></body></html>");
var schedule = (part1 + "" + part2 + "" + part3 + part4 + "");
reportWin = window.open("","","width=500,height=400,toolbar=yes,menubar=yes,scrollbars=yes");
reportWin.document.write(schedule);
reportWin.document.close();
}
}