Flash messages are messages displayed in response to user interaction with a site. Typically these are displayed as success or failure messages after performing an action which submits a form, or in response to an attempt to access a resource for which the user does not have permission.
Flash messages are useful and provided with several systems automatically; TurboGears, for instance, provides a tg_flash variable to all templates and exposes a flash method which can be used to display a message on the next page load.
tg_flash
flash
This is a simple script which gives this functionality to jQuery, so you can display flash messages in response to dynamic events such as AJAX calls.
Usage is simple. Place a div somewhere, usually where you want the flash message to appear, with an ID of flash. After including jQuery and the jQuery flash plugin, you can issue a variety of messages using the methods of the jQuery.flash object.
jQuery.flash
Default behavior is to fade the message in, wait 15 seconds, then fade the message out. If the message is an error of any kind, the message will persist. If the mouse is within the flash message container the message will persist until the cursor is removed. Clicking on the message will also remove it, even if it’s an error. Issuing a flash message while one is already displayed will remove the existing message first.
Default message types include: subtle, error, failure (fail), warning (warn), information (info), and success. All of these take two arguments: the label and message. You can issue messages with custom classes by using the message method, passing three arguments: the class, label, and message.
message
`<?xml version=”1.0” encoding=”UTF-8”?> <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.1//EN” "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd”> xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
`
