jQueryUI Dialogs

jQueryUI is a set of graphical interface libraries that comes on top of jQuery. Developped by the same team, it follows jQuery's evolutions and proposes a set of interface elements (named widgets) such as buttons, accordions, tabs, and what interesses us here CSS popups called dialogs. A dialog can display a text message or an HTML form, and it can be modal, i.e. it stops the user's navigation and waits for an action to go on (the validation of a form, the click of a button…).