false, otherwise.</p>
<pre><code>FUNCTION IsFirstDayOfMonth () AS BOOLEAN
</code></pre>
<h1 id="islastdayofmonth"><a name="IsLastDayOfMonth"></a>IsLastDayOfMonth</h1>
<p>Returns true if the date is the last day of the month; false, otherwise.</p>
<pre><code>FUNCTION IsLastDayOfMonth () AS BOOLEAN
</code></pre>
<h1 id="isleapyear"><a name="IsLeapYear"></a>IsLeapYear</h1>
<p>Determines if a given year is a leap year or not.</p>
<p>A leap year is defined as all years divisible by 4, except for years divisible 