JavaScript Cleantime Calculator

This is the same algorithm used in our main cleantime calculator, but executed in JavaScript. This makes it much easier to use in your own web site(s). We believe it to be the best NA cleantime calculator in the world. It was written by NA members for NA members.

   Please steal this code with our blessings. Do a "View Source" on this page, and take the code between the

   There is a <TABLE>...</TABLE> in there, and that contains the entire calculator, including the relevant JavaScript and display HTML.

   You don't have to give us credit, and you are free to adapt and modify it. This is being presented completely as an expression of Unity.

   P.S. We also recommend that you copy our page explaining our algorithm, or you'll be hearing no end of grief. The algorithm can be a bit odd, especially when you have around 90 days.

NOTE: The Javascript was updated on May 27th, 2002, in order to fix a problem with dates that differed by less than a month.

   If you have an older version, then you should update it.

   We also updated it on June 1st, 2002, in order to have the same interface as the main calculator. This did not fix any problems, but makes it a bit more straightforward. We also made it easier to copy just the relevant section. You can take the entire calculator without any of this extra stuff.

   On June 16th, 2002, we updated it by removing the "Calculate" button. Now the date changes whenever any of the popups are changed.