What is the difference between this function call?
<pre><code>setInterval("RunSlide()", 5000);
</code></pre>

<p>First, call a function with brackets and quotes.</p>

<pre><code>setInterval("RunSlide", 5000);
</code></pre>

<p>Second, call a function without brackets but still using a quotes.</p>

<pre><code>setInterval(Runslide, 5000);
</code></pre>

<p>Third, call a function without brackets and quotes.</p>

<pre><code>RunSlide();
</code></pre>

<p>Fourth, call a function with brackets.</p>

<pre><code>RunSlide;
</code></pre>

<p>Fifth, call a function without brackets.</p>
