How to do Year / Month Calculations in Javascript?
<p>We have a Year/Month HTML control. The underlying value is kept as a decimal.
For Example: 15 year and 2 months is equal to "15.02".</p>

<p>We  want to do calculations based on 2 year/month controls (add/substract).</p>

<p>Just doing basic math calculations doesn't work:</p>

<pre><code>  Value1 : 65.00
  Value2 : 47.09
  65.00 - 14.09 = 17.91 

 (is wrong, but should be 17.03 or (64.12 - 47.09))
</code></pre>

<p>Are there any Javscript/Jquery functions for that or a library that I can use to do Year / Month calculations ?</p>
