function reCalculateKt(changedObj) {ktArray = new Array();refreshVariables();ktArray["summary"] = new Array();displayValues();}function displayValues() {for (var fieldId in ktArray["summary"]) {var fieldObj = document.getElementById(fieldId);if (fieldObj && ktArray["summary"][fieldId]) {fieldObj.innerHTML = numberFormat(ktArray["summary"][fieldId], fieldObj.getAttribute("valuetype"), fieldObj.getAttribute("valueformat"));}}}function stripnumb(numb) {var lespercent;var lesdollar;var lesspace;var lescomma;var lesnumamt = numb.length;if(lesnumamt > 0) {numb=numb.toString();lespercent = numb.indexOf("%");if(lespercent >= 0) {numb=numb.substring(0,lespercent) + "" + numb.substring(lespercent + 1,lesnumamt);lesnumamt=numb.length;}lesdollar = numb.indexOf("$");if(lesdollar >= 0) {numb=numb.substring(0,lesdollar) + "" + numb.substring(lesdollar + 1,lesnumamt);lesnumamt=numb.length;}lesspace = numb.indexOf(" ");if(lesspace >= 0) {numb=numb.substring(0,lesspace) + "" + numb.substring(lesspace + 1,lesnumamt);lesnumamt=numb.length;}lescomma = numb.indexOf(",");if(lescomma >= 0) {while(lescomma >=1) {numb=numb.substring(0,lescomma) + "" + numb.substring(lescomma + 1,lesnumamt);lesnumamt=numb.length;lescomma = numb.indexOf(",");}}numb = eval(numb);} else {numb = 0;}return numb;}function formatnumb(numb) {var negative=0;if(numb < 0) {numb=numb*-1;negative=1;}zeronumb=Math.round(numb*100)/100;integer=Math.floor(zeronumb);if (Math.ceil(zeronumb) == integer) {decimal="00";} else{decimal=Math.round((zeronumb-integer)*100)}decimal=decimal.toString();if (decimal.length<2) decimal="0"+decimal;integer=integer.toString();var tempnumb="";var tempinteger="";var x=0;for (z=integer.length;z>0;z--) {tempnumb=tempnumb+integer.charAt(z-1);x=x+1;if (x==3 & z>1) {tempnumb=tempnumb+",";x=0;}}for (z=tempnumb.length;z>0;z--) {tempinteger=tempinteger+tempnumb.charAt(z-1);}finalnumb=tempinteger+"."+decimal;if(negative == 1) {finalnumb = "-" + finalnumb;}return finalnumb;}function calculateform(form) {if(form.monrent.value == "" || form.monrent.value == 0) {alert("Please enter the amount of your monthly rent payment.");form.monrent.focus();} else if(form.purprice.value == "" || form.purprice.value == 0) {alert("Please enter the purchase price of the home.");form.purprice.focus();} else if(form.numbyears.value == "" || form.numbyears.value == 0) {alert("Please enter the number of years you are financing the home for.");form.numbyears.focus();} else if(form.annualrate.value == "" || form.annualrate.value == 0) {alert("Please enter the mortgage's annual interest rate.");form.annualrate.focus();} else if(form.livintime.value == "" || form.livintime.value == 0) {alert("Please enter the number of years you plan to stay in this property.");form.annualrate.focus();} else {var monrentvar = stripnumb(form.monrent.value);var totalrentvar = 0;var monrentinsvar = stripnumb(form.monrentins.value);if(monrentinsvar == "" || monrentinsvar == 0) {monrentinsvar = 0}var anninflationvar = stripnumb(form.anninflation.value);if(anninflationvar == "" || anninflationvar == 0) {anninflationvar = 0} else if(anninflationvar >= 1) {anninflationvar = anninflationvar / 100;}anninflationvar = eval(anninflationvar) + eval(1);var livintimevar = stripnumb(form.livintime.value);var livinmonvar = livintimevar * 12;var countit = 0;var int = stripnumb(form.annualrate.value);if (int > 1.0) {int = int / 100.0;}int /= 12;var purpricevar = stripnumb(form.purprice.value);var numbyearsvar = stripnumb(form.numbyears.value);var dpamtvar = stripnumb(form.dpamt.value);var loanprincvar = eval(purpricevar) - eval(dpamtvar);var intamt = 0;var accumintvar = 0;var prinamt = 0;var principal = loanprincvar;function floor(number){return Math.floor(number*Math.pow(10,2))/Math.pow(10,2);}var numbmon = numbyearsvar * 12;var pow = 1;for (var k = 0; k < numbmon; k++)pow = pow * (1 + int);var monpmt = (loanprincvar * pow * int) / (pow - 1);var expectappvar = stripnumb(form.expectapp.value);if(expectappvar == "" || expectappvar == 0) {expectappvar = 0;} else if(expectappvar >= 0) {expectappvar = expectappvar / 100;}expectappvar = eval(expectappvar) + eval(1);var accumappvar = purpricevar * expectappvar;var mtginsvar = stripnumb(form.mtgins.value);if(mtginsvar == 0 || mtginsvar == "") {mtginsvar = 0;} else if(mtginsvar >= .01) {mtginsvar = mtginsvar / 100;}mtginsvar = mtginsvar / 12;var mtginskt = 0;var accunmtginsvar = 0;var dppercentage = dpamtvar / purpricevar;if(dppercentage < .20) {mtginskt = 1;accunmtginsvar = 0;}if(mtginskt == 1) {accunmtginsvar = eval(accunmtginsvar) + eval(mtginsvar * principal);mtginsurance = eval(mtginsvar * principal);}if(mtginskt == 0) {mtginsurance = 0;}var origfeevar = stripnumb(form.origfee.value);if(origfeevar == 0 || origfeevar == "") {origfeevar = 0;} else if(origfeevar >= 1 ) {origfeevar = origfeevar / 100;}var feeamtvar = loanprincvar * origfeevar;var discpointvar = stripnumb(form.discpoint.value);if(discpointvar == 0 || discpointvar == "") {discpointvar = 0;} else if(discpointvar >= 1 ) {discpointvar = discpointvar / 100;}var discpointamtvar = loanprincvar * discpointvar;var othercostvar= stripnumb(form.othercost.value);if(othercostvar == 0 || othercostvar == "") {othercostvar = 0;}var closefeesvar= stripnumb(form.closefees.value);if(closefeesvar == 0 || closefeesvar == "") {closefeesvar = 0;}var closecostvar = eval(discpointamtvar) + eval(feeamtvar) + eval(othercostvar) + eval(closefeesvar);var invinterestvar = 0;var invprincipalvar = eval(dpamtvar) + eval(closecostvar);var earnedinterest = stripnumb(form.savintrate.value);if (earnedinterest >= 1.0) {earnedinterest = earnedinterest / 100.0;}earnedinterest /= 12;var inflatinterestvar = 1;while(countit < livinmonvar) {if(countit > 0 && countit % 12 == 0) {accumappvar = accumappvar * expectappvar;monrentvar = monrentvar * anninflationvar;inflatinterestvar = inflatinterestvar * anninflationvar;}totalrentvar = eval(totalrentvar) + eval(monrentvar);totalrentvar = eval(totalrentvar) + eval(monrentinsvar);if(countit < numbmon) {intamt = principal * int;accumintvar = eval(accumintvar) + eval(intamt);prinamt = eval(monpmt) - eval(intamt);principal = eval(principal) - eval(prinamt);}invinterestvar = earnedinterest * invprincipalvar;invprincipalvar = eval(invprincipalvar) + eval(invinterestvar);countit = eval(countit) + eval(1);}var assocduesvar = stripnumb(form.associationdues.value);if(assocduesvar == "" || assocduesvar == 0) {assocduesvar = 0;}var assocduetot = assocduesvar * 12 * livintimevar * inflatinterestvar;var proptaxvar = stripnumb(form.annualproptax.value);if(proptaxvar == "" || proptaxvar == 0) {proptaxvar = 0;}var totproptaxvar = proptaxvar * livintimevar * inflatinterestvar;var maintenvar = form.monmainten.value;if(maintenvar == "" || maintenvar == 0) {maintenvar = 0;}var totmaintcostvar = maintenvar * 12 * livintimevar * inflatinterestvar;var hminsratevar = stripnumb(form.hminsrate.value);if(hminsratevar == 0 || hminsratevar == "") {hminsratevar = 0;} else if(hminsratevar >= .01) {hminsratevar = hminsratevar / 100;}hminsratevar = hminsratevar / 12;var hminstotvar = hminsratevar * purpricevar * livintimevar * inflatinterestvar;var homenetgainvar = eval(accumappvar) - eval(purpricevar);var tottaxdedvar = eval(accumintvar) + eval(totproptaxvar) + eval(feeamtvar);var incomtaxvar = stripnumb(form.incomtax.value);if(incomtaxvar == 0 || incomtaxvar == "") {incomtaxvar = 0;} else if(incomtaxvar >= 1) {incomtaxvar = incomtaxvar / 100;}var tottaxsavvar = incomtaxvar * tottaxdedvar;var realcommvar = stripnumb(form.realtorcom.value);if(realcommvar == 0 || realcommvar == "") {realcommvar = 0;} else if(realcommvar >= 1) {realcommvar = realcommvar / 100;}var sell_costvar = accumappvar * realcommvar;var remodvar = form.remod.value;if(remodvar == "" || remodvar == 0) {remodvar = 0;}var leasepricevar = form.leaseprice.value;if(leasepricevar == "" || leasepricevar == 0) {leasepricevar = 0;}var lp = leasepricevar;var lp_accumappvar = lp * expectappvar;var monrc = stripnumb(form.monrentcredit.value);if(monrc == "" || monrc == 0) {monrc = 0;}var mrc = monrc;var lease_option_fee = (form.leaseoptfee.value);if(lease_option_fee == "" || lease_option_fee == 0) {lease_option_fee = 0;}var lof = lease_option_fee;var lease_option_yrs = (form.lease_optionyrs.value);if(lease_option_yrs == "" || lease_option_yrs == 0) {lease_option_yrs = 0;}var lo_yrs = lease_option_yrs;var lp_appmonamt = lp_accumappvar - lp;var lp_appamt = lp_appmonamt * lo_yrs;form.lp_appamt.value = formatnumb(lp_appamt);var lo_mos = 12 * lo_yrs;var accrufund = eval(lof) + eval(mrc) * eval(lo_mos);form.accrufund.value = formatnumb(accrufund);var yearrentcredit = floor(mrc * 12);form.yearrentcredit.value = yearrentcredit;var renewal = stripnumb(form.renewal.value);form.renewal.value = renewal;var assignment = stripnumb(form.assignment.value);form.assignment.value = formatnumb(assignment);var assignprice = stripnumb(form.assignprice.value);form.assignprice.value = formatnumb(assignprice);var assignprofit = stripnumb(form.assignprofit.value);form.assignprofit.value = assignprofit;var titlesearch = stripnumb(form.titlesearch.value);form.titlesearch.value = titlesearch;var attorneyfees = stripnumb(form.attorneyfees.value);form.attorneyfees.value = attorneyfees;var homeinspection = stripnumb(form.homeinspection.value);form.homeinspection.value = homeinspection;var monmaintence = stripnumb(form.monmaintence.value);form.monmaintence.value = monmaintence;var lo_maintence = monmaintence * lo_mos;var lpothercost = stripnumb(form.lpothercost.value);form.lpothercost.value = lpothercost;var investedearnvar = eval(invprincipalvar) - eval(dpamtvar) - eval(closecostvar);form.renttot.value = totalrentvar;form.mon_pmt.value = monpmt;form.accum_int.value = accumintvar;form.close_cost.value = closecostvar;form.totprop_tax.value = totproptaxvar;form.totmain_cost.value = totmaintcostvar;form.tothmins_cost.value = hminstotvar;form.home_netgain.value = homenetgainvar;form.mtgins_cost.value = accunmtginsvar;form.invested_earn.value = investedearnvar;form.aasoc_duetot.value = assocduetot;form.tottax_sav.value = tottaxsavvar;form.sell_cost.value = sell_costvar;var totrent_costvar = totalrentvar;form.totrent_cost.value = totrent_costvar;var totrent_benevar = investedearnvar;form.totrent_bene.value = totrent_benevar;var totbuy_costvar = eval(accumintvar) + eval(closecostvar) + eval(totproptaxvar) + eval(totmaintcostvar) + eval(hminstotvar) + eval(accunmtginsvar) + eval(assocduetot) + eval(sell_costvar) + eval(remodvar);form.totbuy_cost.value = totbuy_costvar;var totbuy_benevar = eval(homenetgainvar) + eval(tottaxsavvar);form.totbuy_bene.value = totbuy_benevar;var netbuy_costvar = eval(totbuy_costvar) - eval(totbuy_benevar);form.netbuy_cost.value = "$" + formatnumb(netbuy_costvar);if(lp == 0 || lp == "") {lp = 0;} else if(lp >= 1 ) {lp = lp / 100;}var lo_yrsprofit = mrc * lo_mos;var finalpurprice = (leasepricevar) - (lo_yrsprofit) - (lof) + (renewal) + (assignment) + (titlesearch) + (attorneyfees) + (homeinspection) + (lp_appamt) + (lpothercost);form.finalpurprice.value = "$" + formatnumb(finalpurprice);var leasecostratio = (finalpurprice) / (form.monrent.value);form.lcr.value = formatnumb(leasecostratio);var yrrentins = monrentinsvar * 12;var lo_yrrentins = yrrentins * lo_yrs;var yrrent = form.monrent.value * 12;var lo_yrrent = yrrent * lo_yrs;var lpcost = eval(leasepricevar) + lo_yrrent + lo_yrrentins + eval(lof) + eval(renewal) + eval(assignment) + eval(titlesearch) + eval(attorneyfees) + eval(homeinspection) + eval(lp_appamt) + (lpothercost) + (lo_maintence);form.lpcost.value = "$" + formatnumb(lpcost);var lo_yrrent_infl = lo_maintence + lo_yrrentins + lo_yrrent * anninflationvar;form.loyrrentinfl.value = formatnumb(lo_yrrent_infl);var netlease_costvar = lo_yrrent + lo_yrrentins + eval(lof) + eval(renewal) + eval(assignment) + eval(titlesearch) + eval(attorneyfees) + eval(homeinspection) + eval(lp_appamt) + (lpothercost) + (lo_maintence);form.netlease_cost.value = "$" + formatnumb(netlease_costvar);var lp_value = lp_appamt + finalpurprice;form.lp_value.value = formatnumb(lp_value);var assignprofit = assignprice - lpcost;if(assignprice == "" || assignprice == 0) {assignprofit = 0;}form.assignprofit.value = formatnumb(assignprofit);var assignratio = lpcost / assignprofit;if(assignprice == "" || assignprice == 0) {assignratio = 0;}form.assignratio.value = formatnumb(assignratio);var monthlyint = form.annualrate.value / 1200;var base = 1;var mbase = 1 + monthlyint;for (i=0; i 1 ? '.' + z[1] : '';var rgx = /(\d+)(\d{3})/;while (rgx.test(x1)) {x1 = x1.replace(rgx, '$1' + ',' + '$2');}return x1 + x2;}function applyHelpPopups() {if (!helpTexts) return 0;for (var fieldId in helpTexts) {var fieldObj = document.getElementById(fieldId);fieldObj.onmouseover = function () {hideHelp();};if (!fieldObj) continue;if (fieldId.indexOf("help_")==0) {var prevSibling = fieldObj;} else {if (fieldObj.tagName=="INPUT" || fieldObj.tagName=="SELECT") {var fieldParent = fieldObj.parentNode;} else {var fieldParent = fieldObj;}if (!fieldParent) continue;var prevSibling = fieldParent.previousSibling;if (!prevSibling) continue;if (prevSibling.tagName!="DIV") prevSibling = prevSibling.previousSibling;if (!prevSibling) continue;}prevSibling.style.position = "relative";if (fieldId.indexOf("help_")==0) {var reddot = document.createElement("img");reddot.src="../media/question_icon.gif";reddot.className = "kt_reddot_img";} else {var reddot = document.createElement("div");reddot.className = "kt_reddot";}prevSibling.appendChild(reddot);prevSibling.setAttribute("help_id", fieldId);prevSibling.onclick = function () {showHelp(this, this.getAttribute("help_id"));};prevSibling.onmouseout = function () {setTimeout("hideHelp('"+this.getAttribute('help_id')+"')", 500);}}return 1;}var overHelp = 0;function showHelp(fieldObj, help_id) {if (!fieldObj || !help_id || !helpTexts[help_id]) return 0;var help_box = document.getElementById("help_box");if (!help_box) {help_box = document.createElement("div");help_box.id = "help_box";help_box.className = "help_box";help_box.onmouseover = function () {overHelp = 1;};help_box.onmouseout = function () {overHelp = 0;};document.body.appendChild(help_box);help_box = document.getElementById("help_box");}var field_top = findPosY(fieldObj);var field_left = findPosX(fieldObj);help_box.innerHTML = helpTexts[help_id];help_box.style.top = (field_top+20)+"px";help_box.style.left = (field_left-10)+"px";help_box.style.display = "block";help_box.setAttribute("help_id", help_id);}function hideHelp(help_id) {if (overHelp) return 1;var help_box = document.getElementById("help_box");if (help_box) {if (help_id && help_box.getAttribute("help_id")!=help_id) return 0;help_box.style.display = "none";}return 1;}function findPosX(obj) {var curleft = 0;if (obj.offsetParent) {while (obj.offsetParent) {curleft += obj.offsetLeft;obj = obj.offsetParent;}} else if (obj.z) curleft += obj.z;return curleft;}function findPosY(obj) {var curtop = 0;if (obj.offsetParent) {while (obj.offsetParent) {curtop += obj.offsetTop;obj = obj.offsetParent;}} else if (obj.x) curtop += obj.x;return curtop;}