Genelec 8020D (8020DPM)

// on page load update the calculator

window.onload = function() {

var productprice = document.querySelector('[itemprop=price]').getAttribute('content');

document.getElementById("productvalue").value = productprice;

// Get the modal var modal = document.getElementById('myModal1');

// Get the button that opens the modal var btn = document.getElementById("myBtn");

// Get the element that closes the modal var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal btn.onclick = function() { modal.style.display = "block"; }

// When the user clicks on (x), close the modal span.onclick = function() { modal.style.display = "none"; }

var uniqueref = Math.floor(Math.random() * (999999999999 - 0 + 1)) + 0;

var retailersuniqueref = document.getElementById("retailersuniqueref");

retailersuniqueref.value = Math.floor(uniqueref);

// update the calculator

var financecode = document.getElementById("financecode");

var res = financecode.value.split("-");

var theterm = res[0].replace( /^\D+/g, '');

var theapr = res[1];

var fdeposit = document.getElementById("financedeposit");

var loanval = productvalue.value - fdeposit.value;

updateomnicalc (theterm, loanval, theapr);

}

// when value of product-value changes update the values of the deposit dropdowns

var productvalue = document.getElementById("productvalue");

productvalue.onchange = function()

{

// update deposit10 value

var deposit10 = document.getElementById("deposit10");

deposit10.setAttribute("value", productvalue.value *.1);

// update deposit20 value

var deposit20 = document.getElementById("deposit20");

deposit20.setAttribute("value", productvalue.value *.2);

// update deposit30 value

var deposit30 = document.getElementById("deposit30");

deposit30.setAttribute("value", productvalue.value *.3);

// update deposit40 value

var deposit40 = document.getElementById("deposit40");

deposit40.setAttribute("value", productvalue.value *.4);

// update deposit50 value

var deposit50 = document.getElementById("deposit50");

deposit50.setAttribute("value", productvalue.value *.5);

// update the calculator

var financecode = document.getElementById("financecode");

var res = financecode.value.split("-");

var theterm = res[0].replace( /^\D+/g, '');

var theapr = res[1];

var fdeposit = document.getElementById("financedeposit");

var loanval = productvalue.value - fdeposit.value;

updateomnicalc (theterm, loanval, theapr);

}

// this code updates the finance calculator

function updateomnicalc (term, loanvalue, apr) {

var depositamount = document.getElementById("financedeposit").value;

document.getElementById("depositamount").innerHTML = '£' + eval(depositamount).toFixed(2);

document.getElementById("theterm").innerHTML = term + ' months';

document.getElementById("apr").innerHTML = apr + '%';

document.getElementById("loanvalue").innerHTML = '£' + loanvalue.toFixed(2);

if (apr==0.00) {

var monthlypayments = loanvalue / term;

var mp = monthlypayments.toFixed(2);

var costofloan = loanvalue;

} else {

var bb = apr/100;

var cc = bb+1;

var dd = 1/12;

var ee = dd-1;

var perperiodrate = Math.pow(cc,dd)-1;

var a = loanvalue * perperiodrate;

var b = 1+perperiodrate;

var c = Math.pow(b, -term);

var d = 1-c;

var monthlypayments = a/d;

var mp = monthlypayments.toFixed(2);

var costofloan = mp * term;

}

document.getElementById("monthlypayment").innerHTML = '£' + mp;

//var totalpayable = eval(loanvalue) + costofloan;

var totalpayable = parseFloat(depositamount) + parseFloat(costofloan);

console.log(mp);

console.log(term);

console.log(costofloan);

console.log(depositamount);

console.log(totalpayable);

document.getElementById("totalamountpayable").innerHTML = '£' + parseFloat(totalpayable).toFixed(2);

}

// update calculator when the finance option changes

var financeoption = document.getElementById("financecode");

financeoption.onchange = function()

{

// update the calculator

var financecode = document.getElementById("financecode");

var res = financecode.value.split("-");

var theterm = res[0].replace( /^\D+/g, '');

var theapr = res[1];

var fdeposit = document.getElementById("financedeposit");

var loanval = productvalue.value - fdeposit.value;

updateomnicalc (theterm, loanval, theapr);

}

// update calculator when the deposit option changes

var depositoption = document.getElementById("financedeposit");

depositoption.onchange = function()

{

// update the calculator

var financecode = document.getElementById("financecode");

var res = financecode.value.split("-");

var theterm = res[0].replace( /^\D+/g, '');

var theapr = res[1];

var fdeposit = document.getElementById("financedeposit");

var loanval = productvalue.value - fdeposit.value;

updateomnicalc (theterm, loanval, theapr);

}

// When the user clicks anywhere outside of the modal, close it window.onclick = function(event) { if (event.target == modal) { modal.style.display = "none"; } }