How to make several JQuery elements together
<p>Two variables each stands for a jQuery element, how do I make them one variable stands for both elements?
e.g.</p>

<pre><code>var a=$("#elem1");
var b=$("#elem2");
</code></pre>

<p>I tried </p>

<pre><code>var c=a+b;
</code></pre>

<p>to make </p>

<pre><code>c=$("#elem1,#elem2");
</code></pre>

<p>But it didn't work.</p>
