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PODynamically change selectbox options based on previous option selection
 

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  1. PODynamically change selectbox options based on previous option selection
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    <p>What I am trying to accomplish is the following... HTML</p> <pre><code>&lt;!doctype html&gt; &lt;head&gt; &lt;meta http-equiv="Content-type" content="text/html; charset=utf-8" /&gt; &lt;link href="css/jquery.selectbox.css" type="text/css" rel="stylesheet" /&gt; &lt;/head&gt; &lt;body&gt; &lt;select name="dateselector_parent" id="dateselector_parent" tabindex="1"&gt; &lt;option value=""&gt;--Select Date--&lt;/option&gt; &lt;option value="1"&gt;2012&lt;/option&gt; &lt;option value="1"&gt;2011&lt;/option&gt; &lt;option value="1"&gt;2010&lt;/option&gt; &lt;option value="2"&gt;Predefined Dates&lt;/option&gt; &lt;/select&gt; &lt;select name="dateselector_child" id="dateselector_child" tabindex="2"&gt; &lt;option value=""&gt;--Select Date--&lt;/option&gt; &lt;option value="1"&gt;January&lt;/option&gt; &lt;option value="1"&gt;February&lt;/option&gt; &lt;option value="1"&gt;March&lt;/option&gt; &lt;option value="1"&gt;April&lt;/option&gt; &lt;option value="1"&gt;May&lt;/option&gt; &lt;option value="1"&gt;June&lt;/option&gt; &lt;option value="1"&gt;July&lt;/option&gt; &lt;option value="1"&gt;August&lt;/option&gt; &lt;option value="1"&gt;September&lt;/option&gt; &lt;option value="1"&gt;October&lt;/option&gt; &lt;option value="1"&gt;November&lt;/option&gt; &lt;option value="1"&gt;December&lt;/option&gt; &lt;option value="2"&gt;Current Month&lt;/option&gt; &lt;option value="2"&gt;Month to Date&lt;/option&gt; &lt;option value="2"&gt;Last 7 Days&lt;/option&gt; &lt;/select&gt; &lt;script type="text/javascript" src="js/jquery-1.7.2.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="js/jquery.selectbox-0.2.js"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="js/datejs.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(function () { $("#dateselector_parent").selectbox(); $("#dateselector_child").selectbox(); }); &lt;/script&gt; &lt;/body&gt; </code></pre> <p></p> <p>This creates two select boxes, I want one box to display content according to what the user chooses on the other one. For example, if the user chooses, 2010 or 2011 or 2012, I want to display Jan-Dec as options on the second one. If the user chooses, Predefined Dates, I want to display Current Month, Month to Date, and Last 7 Days. The javascript plugin I'm using allows the user to define the onChange, onOpen, and onClose methods. I have been doing some research and it appears that AJAX is involved in trying to accomplish this, but since I don't know one bit of PHP I would like to know if it's possible to accomplish this with jQuery. (I have attempted to solve this problem with no luck of course, I am not looking for someone to do it for me, I just want to be pointed in the right direction, whether I can accomplish this with jQuery or if it's necessary to use AJAX since I haven't seen an example online with only jQuery). </p> <p>Any help will be appreciated</p>
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    1. COI would suggest you to use two child dropdowns and show/hide based on the selection of the parent dropdown. If you remove options based on selection (as you are trying) it could lead to a security issue at the server side.
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    2. COHmm, that is certainly something I had not thought about...So the second dropdown is not visible until the user chooses a date (2010,2011 or 2012) would "show" the Jan-Dec select box, and the other one would "show" the predefined date (and Jan-Dec would remain hidden). Is this what you mean? Very nice input...thanks :)
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    3. COYes you got it...
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