jGrowl is a jQuery plugin to raise unobtrusive messages within the browser as shown below
Read more and download the source from the below link.
http://stanlemon.net/projects/jgrowl.html
jGrowl - jQuery plugin for unobtrusive messages
CSS Based Breadcrumbs
If you check out the apple store http://store.apple.com you would notice breadcrumbs like the one below.
Breadcrumbs are a navigation pattern that shows a path from the home page to the current one.
If you would like create one for your website using CSS the link below would help you do just that.
Read more from the below link.
http://www.jankoatwarpspeed.com/post/2008/08/14/Create-applecom-like-breadcrumb-using-simple-CSS.aspx
LivePipe UI - Prototype Based Controls and Widgets
LivePipe UI offers a suite of controls that you would need for Web 2.0 applications.
Includes the following controls
Tabs
Windows
TextArea (WYSIWYG)
Select Multiple
Rating
Progress Bar
Scroll Bar
Context Menu
Read more and download the source from the below link.
http://livepipe.net/
Visifire - Open source data visualization component
Visifire, an open source data visualization component powered by Silverlight and WPF (Windows Presentation Foundation).
The great feature about this component is the flexibility to use any server side technology like ASP, ASP.Net, PHP, JSP, ColdFusion, Ruby on Rails or just simple HTML 

Read more and download the source from the below link
http://www.visifire.com/
Dewplayer - flash mp3 player
Dewplayer is a flash mp3 player that lets you play mp3 audio files on your web pages. The flash animation is light and easy to use.
Read more and download from the below link.
http://www.alsacreations.fr/dewplayer-en
Validation jQuery Plugin
Here is another AJAX powered script that you could use for form validations. This script uses jQuery.
Requires : jQuery 1.2.6+
Read more and download the source from the below link.
http://bassistance.de/jquery-plugins/jquery-plugin-validation/
Demo Link
http://jquery.bassistance.de/validate/demo/
AJAX AutoComplete - jQuery plugin
This jQuery plugin can be used to autocomplete your input field to enable users to quickly find and select a value, leveraging searching and filtering.
Read more and download the source from the below link.
http://bassistance.de/jquery-plugins/jquery-plugin-autocomplete/
Demo Link
http://jquery.bassistance.de/autocomplete/demo/
Load in and Animate Content using jQuery and AJAX
Came across this AJAX tutorial that will teach you how to Load in and Animate Content using jQuery and AJAX. i.e. the content in your pages loads in relevant containers without user having to navigate to another page.
Read more and download the source from the below link.
http://nettuts.com/javascript-ajax/how-to-load-in-and-animate-content-with-jquery/
Demo Link.
http://nettuts.s3.amazonaws.com/011_jQuerySite/sample/index.html
CSS Image Rollovers
If you don't like to use two separate images with JavaScript for your Image rollovers , check this CSS based approach.
Read more form the below link.
http://www.redvodkajelly.com/blog/2007/06/15/css-image-rollovers/
Flip - A jQuery plugin
Flip is a really cool JQuery based script that you can use in your websites to create great looking flip boxes. (bottom>top, top>bottom, left>right, right>left)

Read more and download the source from the below link.
http://lab.smashup.it/flip/
FreshGenerator - Webdesign Tool
FreshGenerator is a webdesign tool that helps you create the graphic elements to build Web 2.0 sites.
Read more and try your design at the below link.
http://www.freshgenerator.com/
Examples Link
http://www.freshgenerator.com/pages/examples
Highslide JS - View Images & Html Popups
Highslide JS is yet another open source JavaScript software that can be used to show thumbnail images and HTML pop-ups.
Read more and download the source from the below link.
http://highslide.com/
Demo Link.
http://highslide.com/configurator.php
jQuery iPod-style Drilldown Menu
This is a jQuery based menu script that works just like your iPod drilldown menu.
This drilldown menu provides easy navigation of complex nested structures with any number of levels. 
Read more and download the source from the below link.
http://www.filamentgroup.com/lab/jquery_ipod_style_drilldown_menu
Demo Link.
http://www.filamentgroup.com/examples/menusHierarchical/
dwProtector : MooTools & JQuery Based Image Protector
This script can be used to provide some very basic protection to the images you put up on your websites.
Features :
* Prevents right-click “Save Image As”.
* Prevents dragging an image to the desktop.
* Prevents right-click “Save Background As”.
* Prevents right-click “View Background Image”
I tried out the demo and when I tried to save the image below, all that I got a was a blank image (blank.gif)
This isn’t meant to be THEE image protector. Print-screen or a quick view-source will get the user the image.
Read more and download the source from the below links.
MooTools Version
http://davidwalsh.name/mootools-12-image-protector-dwprotector
jQuery Version
http://davidwalsh.name/image-protector-plugin-for-jquery
mooHorizonSlider - MooTools Based Slider
mooHorizonSlider is a mootools based slider script.
Features include
* single image movement left / right
* multiple movement left / right
* defining scroll speed
* defining image container
* defining image size
Read more and download the source from the below link.
http://www.artviper.net/mooHorizonSlider/mooSlider.php
FancyForm - Checkbox Replacement script
FancyForm is an easy to use replacement script for your standard browser checkbox.
Comes with the flexibility to change the appearance and function of HTML form elements.
The great thing about this script is that the script degrades gracefully on all older, non supporting browsers.
Read more and download the source from the below link.
http://lipidity.com/fancy-form/
Flash Gallery
One more image gallery that allows you to create slideshows on your website in no time. No programming skills required. Easy to install and use. Forms a slideshow from a specified folder or from a Flickr photostream.
Read more and download the source from the below link.
http://www.flash-gallery.org/
Demo Link.
http://www.flash-gallery.org/demo.html
JQuery Wizard - Emulate Windows Style Wizard
JQuery Wizard plugin allows you to create Window Style Wizard for your web applications. 
Read more and download the source from the below link.
http://worcesterwideweb.com/2007/06/04/jquery-wizard-plugin/
Demo Link.
http://worcesterwideweb.com/jquery/wizard/
MooSound - MooTools Based Script For Sound Management
"MooSound is a MooTools API for Flash-enabled sound management.
That may not seem very exciting on its own, but if you need to add sounds to your page using MooTools, you’ll probably find it useful."

Read more and download the source from the below link.
http://msteigerwalt.com/widgets/sounds/v0.8/
SpinBox.JS - Skinnable Spin Boxes
Using SpinBox.js you can change ordinary textboxes into into cool looking, multifunctional and skinnable spin boxes.
The script is unobtrusive. Works with Google Chrome as well.
Read more and download the source from the below link.
http://dev.wemakesites.net/Spin_Box_JS/
12 Principles to Keep Your HTML Code Clean
Came across this great article that explains 12 principles to build a great website with clean HTML code. The article looks at some poorly written HTML code and explains how to go about correcting it.
Read more at the below link.
http://www.smashingmagazine.com/2008/11/12/12-principles-for-keeping-your-code-clean/
jQZoom - jQuery Based Image Zoom Script
jQZoom - This jQuery based script allows you to create zoom images using a small maginifier window that can be hovered over the section of the image that needs to be zoomed.
Read more and download the source from the below link.
http://www.mind-projects.it/blog/jqzoom_v10
jQuery MaxLength Limit
Need to limit the number of characters that a user can input in a field and notify the user the characters remaining as he/she types? Look no further.
This jQuery based script does just that.
Read more and download the source from the below link.
http://remysharp.com/2008/06/30/maxlength-plugin/
MooTools Based Tooltip
This MooTools based script allows you to create mouse over tooltips.
This script is built upon the YOOTooltip code.Includes a Gzip loader that delivers CSS and Javascript files quicker.
Requires MooTools, PHP and a few js files. 
Read more and download the source from the below link.
http://www.hotajax.org/mootools/tooltips--rating/565-tooltipmootools.html
simpleCart(js) + Paypal - Javascript Based Shopping Cart
If you need a shopping cart for your site integrated with Paypal then, look no further.
simpleCart(js) is a 10.5Kb javascript file that uses cookies to track items in the cart. The great thing about this script is that it does not require any database or programming knowledge. Basic HTML is all that is required.
However, it can be easily expanded to use databases and contain more advanced options.
Read more and download the source from the below link.
http://www.thewojogroup.com/2008/10/simplecartjs-paypal-e-commerce-in-minutes/
timepickr - jQuery based Time Picker
timepickr - This jQuery based script makes the process of capturing time in a form extremely easy.
Features include
Unobtrusive
Degrades gracefully
Uses maximum 2 clicks
Intuitive keyboard navigation
Touch device friendly
Read more and download the source from the below link.
http://haineault.com/media/jquery/ui-timepickr/page/

