How do i manipulate select box using jquery?
<p>I have some select boxes like the following:</p>

<pre><code>&lt;select id="my_box1" rel="cal_10"&gt;
    &lt;option value="A"&gt;&lt;/option&gt;
&lt;/select&gt;

&lt;select id="my_box2" rel="cal_10.50"&gt;
    &lt;option value="A"&gt;&lt;/option&gt;
&lt;/select&gt;

....

&lt;select id="my_boxn"&gt;
    &lt;option value="B"&gt;&lt;/option&gt;
&lt;/select&gt;
</code></pre>

<p>On changing, I want to add the related value (that is 10 and 10.50) only when the select boxes has the same option value.</p>

<p>For Example: if the first and second select box has option value as A, then I want to add it.</p>

<p>How can I do this using jQuery?</p>
