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V3 Frequently Asked Questions


Dinkytown V3 FAQ Overview


The V3 calculators use JavaScript, HTML5 and CSS to display and run the calculators. Is never any an addional plug-in, spyware or any other software to installed.

More information can be found at:

Please contact support with any questions you have when deploying or using the calculators. Feel free to contact us via email at or by phone at (612) 331-2291.

Do your calculators use responsive design?
Do your calculators follow ADA requirements for WCAG 2.1?
What are the terms of your license agreement?
Where can I view your license agreement?
Have your calculators been reviewed by FINRA (formally the NASD)?
Will these calculators work in WordPress?
Do I have to provide a link to you on our calculator pages?
Can I purchase these calculators on behalf of a client?
We have an outside resource deploying our website, how do you support their deployment?
Which browsers do you support?
Which web servers do you support?
What can I customize on the calculators?
Do the calculators work with iFrames?
What technology to you use to create your calculators?
Can I embedd a calculator on my site (without any download)?


Do your calculators use responsive design?

Yes - they are designed from the ground up to reponsively adapt to the device they are being used on. Small screens automatically reformat to maximize limited screen space and prevent unnecessary scrolling. Graphs and text resize appropriately and sliding scales adapt to best fit or hide depending the devices viewing size. The V3 calculators were designed to allow you to install one set of calculators that work anywhere you have a browser.

Do your support the use of Content Security Policy (CSP)?

Yes - this support has been in place since 2017. We fully support Content Security Policy (CSP) on sites where it has been enabled, but it is not required. The primary goal of CSP is to not allow a browser to execute scripts that are from uncontrolled locations which includes use of any inline javascript. While inline javascript is not guaranteed to be insecure, a browser can't determine the location from which it originated since it is not being loaded from a separate javascript file. To eliminate XSS attacks, CSP blocks all in-line scripting and doesn't attempt to determine its origin or its safety.

For more information please see Mozilla CSP


Do your calculators follow ADA requirements for WCAG 2.0?

Yes - All calculators meet or exceed accessibility specification WCAG 2.1 Level AA and Section 508.

For more information please see Financial Calculators WCAG 2.1 Level AA.

we will continue to monitor and update our software to maintain compliance and ensure any future compliance issues are resolved quickly. If you have a specific calculator on your site where you have a question please feel free to contact us.


What are the terms of your license agreement?

When you purchase our commercial versions, you will need to accept our license agreement. This agreement defines the terms of use for any software you purchase from us. The basic terms of the agreement allow you to use software on a single website for as long as you wish, without additional license fees. Please follow the link below to look at the complete license agreement.

To view our complete license agreement, please click: License Agreement


Where can I view your license agreement?

To view our complete license agreement, please click: License Agreement

Have your calculators been reviewed by the FINRA (formally the NASD)?

The majority of our financial calculators have been reviewed by the Financial Industry Regulatory Authority (FINRA) through one or more of our clients. Whenever there has been an issue, we have acted immediately to address it. The FINRA has a couple of items that they consider extremely important in regards to all financial calculators used by their members.

The first is the definition of "Rate of Return", "Expected Rate of Return" or any other similar term. In order to be compliant, all "Rate of Return" definitions need to include the relevant risk and relevant assumptions used by the calculations being illustrated. All of our calculators that include "Rate of Return" have a definition that has been reviewed and approved by the FINRA.

The second item of concern is that no rate of return on any calculator exceed 12%. The default rate of return for all of our calculators is capped at 20%. This means that no entry in a Rate of Return field can exceed 20%. For our clients that are members of the FINRA, we have an option that reduces this limit to 12%. With this optional limit in place, the calculators are fully compliant with the FINRA rules.

If, for whatever reason, your compliance department, the FINRA or the SEC finds an issue with one of our calculators, we will always do our utmost to resolve the issue immediately. FINRA or SEC issues are resolved at no additional charge. Depending on the issue, most compliance department concerns are covered at no charge as well. There may be a small custom development fee for enhancements or custom changes specific to your company.


Will these calculators work in WordPress?

Yes, you can embed these calculators into a WordPress page. To make this work you will need to follow the instructions for embedding the calculator into a page:Embed a calculator into an exiting page. In addition you will need to have the ability to load JavaScript and CSS files to your server. Some free versions of WordPress may limit your ability to load these types of files. Virtually all paid WordPress hosted sites allow for these files to be loaded to your site. Please contact your website host if you are uncertain if this is possible.

Do I have to provide a link to you on our calculator pages?

No. As a matter of fact, we are one of the few companies that allow you to brand our calculators as your own. We require no visible reference to KJE Computer Solutions, Inc. or link to our website once the calculator is loaded. We do require a copyright notice in the comments of the source code for each page that you publish and a brief copyright notice when the calculator loads.

Can I purchase these calculators on behalf of a client?

Yes, however all updates will be forwarded to the purchaser of the software. If you are not going to be providing long term support for a client's website, you may wish to have your client purchase the calculators directly from us. Your client can then send you access information to download the software so that you can handle the installation.

We have an outside resource deploying our website, how do you support their deployment?

We are happy to support just about any third party resource in the deployment of your calculators. All we request is that you provide us with their contact information. You can include this additional information in the comments section of your order, via e-mail, or by just giving us a phone call. Your outside resource can then feel free to contact us directly with any questions or issues that may arise.

Which browser versions to you support?

We offer the widest possible device support - including support for IE9+, Chrome, Safari, Firefox, Opera, iPod, iPad, iPhone, Windows XP, Windows Vista, Windows 7, MaxOS, Linux, Android Phones, Android Tablets, Kindle Fire and just about anywhere else you have a browser! For best results please use Internet Explorer 11 and higher, Macintosh Safari, Mozilla FireFox or Google Chrome or a modern mobile device. All of these browsers provide excellent JavaScript technology support, including quick load times and fast calculations. We no longer support IE7 and IE8.

Operating systems supported includes Windows Vista, Windows 7, Windows 8, Windows 10, Mac OS X, iOS and Android. The combination of our operating system and browser support covers over 99% of all internet use. We no longer support Windows XP, Windows 98 or Windows 95.


Which web servers do you support?

Because all of our calculators run on your visitor's browser with JavaScript, we do not require any special web-server processing or installation. That makes us compatible with virtually every web server in use today. This includes support for HTTP and HTTPS (secured). Examples of the most widely used webservers include Apache, Microsoft, Netscape-Enterprise, Zeus, Rapidsite, thttpd, Tiger Shark and almost any other HTTP server on virtually any platform. Our calculators have been successfully setup on all versions of Windows, Mac OS X, Linux and Unix.

What can I customize on the calculators?

Using a little bit of JavaScript and CSS you can customize virtually all colors, fonts and many of the graphical aspects of the calculators. In addition, you can format content around the calculator or embed the calculators into directly into existing calculator pages. Our calculators have been designed to be highly adaptable to your website with the potential for seamless integration and branding. Additional information regarding customization and many code examples can be found on our customize FAQ.

Do the calculators work with iFrames?

Yes! Simply add this code where you wish the calculator to appear. The iframe will load the calculator and automatically size/resize responsively

Simply add this code where you wish the calculator to appear.

    <script type="text/javascript" SRC="KJE.js"></script>
    <iframe id="KJE-IFRAME" src="index.html" style="width:100%;border:none;" scrolling="no"></iframe>

Make sure that "index.html" above points to the deployment location of your calculators. This will load the index page, with links to the calculators in your package. You can also directly load a calculator by changing the "index.html" to the calculator html file instead. For example, "MortgageLoan.html" for the mortgage calculator.


What technology to you use to create your calculators?

All of our V3 calculators use HTML5, JavaScript and CSS. In addition they use responsive design to automatically adapt the device and screen size.


Can I embed a calculator on my site (without any download)?

Yes - we can host all of the JS and CSS files on our server and you will only need to paste a small piece of HTML code into the page where you want a calculator to appear. To give this a whirl please go through our free trial sign-up. It will provide you with the option to download the trial package or paste the required HTML code into your existing web page.

Link to Dinkytown.net free trial page: Free Trial