pjokumsen

This plugin allows you to use jQuery UI’s widgets with a simple to advanced shortcode in your pages or posts.
Here is a list of the current widgets and their corresponding shortcodes:
<ul>
<li>Dialog – Used with [pjjuh-dialog]contents[/pjjuh-tab] to create a button where the shortcode is inserted that will open a dialog with the contents of the tag (or you can set an attribute of page to a title of one of the pages on your site to load the contents of that page into the dialog that is opened from pressing the button). For more information on how to use this please visit <a href="http://pjokumsen.co.za/wordpress/plugins/pj-jquery-ui-helper/" rel="nofollow ugc">my site</a>.</li>
<li>Tabs – Used with [pjjuh-tab-group] and then [pjjuh-tab title=”tab-title”]contents[/pjjuh-tab] to create a tab with the title “tab-title” that contains the contents specified. For more information on how to use this please visit <a href="http://pjokumsen.co.za/wordpress/plugins/pj-jquery-ui-helper/" rel="nofollow ugc">my site</a>. </li>
<li>Accordion – Used with [pjjuh-accordion] and then [pjjuh-acc-section title=”section-title”]contents[/pjjuh-acc-section] to create a section with the title “section-title” that contains the contents specified. For more information on how to use this please visit <a href="http://pjokumsen.co.za/wordpress/plugins/pj-jquery-ui-helper/" rel="nofollow ugc">my site</a>.</li>
</ul>
Widgets I hope to add in the near future are:
<ul>
<li>Tooltips</li>
</ul>
I also hope to allow more variations for the widgets in the near future.

PJ jQuery UI Helper

Plugin to incorporate jQuery UI in posts and pages using shortcodes.

Yannick Lefebvre

The purpose of this plugin is to allow users to create one or more modal dialog(s) / pop-up window(s) that will appear when a user visits their site. The number of times that these can load is configurable. They can load content from external sites or custom HTML code into the dialog. This plugin can be used to invite people to register to a newsletter, respond to a survey, or simply welcome come to a site upon their first visit.
You can try it out in a temporary copy of WordPress <a href="https://demo.tastewp.com/modal-dialog" rel="nofollow ugc">here</a>.

Modal Dialog

The others either didn't work or caused massive JavaScript problems, breaking other plugins.

This plugin worked the best.

Worked better than the others

The purpose of this plugin is to allow users to create one or more modal dialog(s) / pop-up window(s) that will appear when a user visits their site.

PJ jQuery UI Helper vs Modal Dialog