JQuery/Ajax Help

Over the years I have pulled several widgets from various places using jquery and ajax and used them in my classic asp sites with good success.  However I really don't know what the heck I am doing and I think it is time to figure it out.  I am in the process of adding a datatable to a site using these technologies.  I am a little fuzzy about what I need to use for plugins.  Here is what I have right now on a page that has a drop down menu and that I am trying to place a datatable on.  Please let me know if there is any redundancy, anything missing, or a better way to do this.  (This is in the page head.)

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/code.jquery.com/jquery-1.11.1.min.js"></script>
<link rel="stylesheet" type="text/css" href="/drop_menu/menu.css"> 

<!-- DataTables CSS -->
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/css/jquery.dataTables.css">
<script type="text/javascript" charset="utf8" src="http://ajax.googleapis.com/code.jquery.com/jquery-1.10.2.min.js"></script>
<script type="text/javascript" charset="utf8" src="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/js/jquery.dataTables.js"></script>

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Bob SchneiderCo-OwnerAsked:
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Big MontySenior Web Developer / CEO of ExchangeTree.org Commented:
It looks like you have 3 versions of jquery loaded, you only need one, so I would go with the latest version:

<script type="text/javascript" src="http://ajax.googleapis.com/code.jquery.com/jquery-1.11.1.min.js"></script>
<link rel="stylesheet" type="text/css" href="/drop_menu/menu.css"> 

<!-- DataTables CSS -->
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/css/jquery.dataTables.css">
<script type="text/javascript" charset="utf8" src="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/js/jquery.dataTables.js"></script>
                                  

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Big MontySenior Web Developer / CEO of ExchangeTree.org Commented:
one thing to note, when using jquery plugins, you always want to load the main jquery file first
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Bob SchneiderCo-OwnerAuthor Commented:
That is what I thought.  Thanks!!
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Scott Fell, EE MVEDeveloper & EE ModeratorCommented:
On the samples, they give you the code to start with  http://www.datatables.net/examples/ajax/simple.html

<head>
<link rel="stylesheet" type="text/css" href="/drop_menu/menu.css"> 
<script type="text/javascript" src="http://ajax.googleapis.com/code.jquery.com/jquery-1.11.1.min.js"></script>


<!-- DataTables CSS -->
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/css/jquery.dataTables.css">
<script type="text/javascript" charset="utf8" src="http://ajax.googleapis.com/cdn.datatables.net/1.10.1/js/jquery.dataTables.js"></script>
                                  

<script>
$(document).ready(function() {
    $('#example').dataTable( {
        "ajax": "data/arrays.txt"
    } );
} );
</script>
</head>

<table id="example" class="display" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </thead>
 
        <tfoot>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </tfoot>
    </table>

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You should load all css first, then js in order.  jquery first, then the plug.
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Scott Fell, EE MVEDeveloper & EE ModeratorCommented:
A point of reference, the code was not entirely correct but good enough.

CSS
Jquery
Other JS
HTML
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