$(document).ready(function(){});function CleanMortgageForm(){$('#mortgage_calculator input[name="payments"]').val('');$('#mortgage_calculator input[name="principal"]').val('');$('#mortgage_calculator input[name="monthly"]').val('');$('#mortgage_calculator input[name="price"]').val(clean_numeric($('#mortgage_calculator input[name="price"]').val()));$('#mortgage_calculator input[name="apr"]').val(clean_numeric($('#mortgage_calculator input[name="apr"]').val()));$('#mortgage_calculator input[name="down"]').val(clean_numeric($('#mortgage_calculator input[name="down"]').val()));$('#mortgage_calculator input[name="years"]').val(clean_numeric($('#mortgage_calculator input[name="years"]').val()));}
function CalculateMortgageForm(){CleanMortgageForm();if(ValidateMortgageForm()){var payments;var principal;var monthly;rate=$('#mortgage_calculator input[name="apr"]').val()/100/12;payments=12*$('#mortgage_calculator input[name="years"]').val();principal=$('#mortgage_calculator input[name="price"]').val()-$('#mortgage_calculator input[name="down"]').val();monthly=Math.floor((principal*rate)/(1-Math.pow(1+rate,(-1*payments)))*100)/100;$('#mortgage_calculator input[name="payments"]').val(payments);$('#mortgage_calculator input[name="principal"]').val(principal);$('#mortgage_calculator input[name="monthly"]').val(monthly);}}
function ValidateMortgageForm(){var result=true;$('#mortgage_calculator input').removeClass('error');if($('#mortgage_calculator input[name="price"]').val()=='0'){result=false;$('#mortgage_calculator input[name="price"]').addClass('error');}
if($('#mortgage_calculator input[name="apr"]').val()=='0'){result=false;$('#mortgage_calculator input[name="apr"]').addClass('error');}
if($('#mortgage_calculator input[name="years"]').val()=='0'){result=false;$('#mortgage_calculator input[name="years"]').addClass('error');}
return result;}
function clean_numeric(value){var clean=value.replace(/[^0-9.]/g,'');if(clean.length==0)clean='0';return clean;}
function is_numberic(value){var reg=/^([0-9.$]{5})$/;return reg.test(value);}