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I am using jQuery.ui.dialog.js to show the modal pop up.. But this Jquery.ui.dialog.js is throwing a javascript error 'jQuery' is undefined. Please help . How can i resolve this. I am using this two .css and .js

1.jquery.ui.dialog.css & 1.jquery.ui.dialog.js 2.jquery-ui-1.8.2.custom.css & query-ui-1.8.2.custom.js

Please advice.

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  • Maybe you should google first or search the site for similar questions. 90% chance that you just didn't include the jquery lib itself. Commented Aug 25, 2010 at 10:33
  • show us code between <head> .... </head>, u r probably missing something or path is not correct Commented Aug 25, 2010 at 10:35

3 Answers 3

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Have you ensured that your tag for jQuery comes before the same for jQuery UI?

Beginners guide is here:

http://learn.jquery.com/jquery-ui/getting-started

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Make sure you have included the jquery-1.4.2.js file in your HTML.

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You need to include the jQuery library itself to use jQuery UI, make sure to download and include that script as well from the jquery.com download section (also make sure it's beofre all other jQuery dependencies, plugins, UI, etc).

Or, include it from a CDN like this:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
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