Below are some attractive, plug and play ajax scripts that you can obtain from the links given, hope you all would like it !
Script name: Lightbox
Detail: LightWindow is a prototype/ script.aculo.us based modal dialog, with a focus on customization. It’s highly capable of handling many data sources; including Flash, Quicktime, Images, iFrames, Forms, and more.
Script link: http://stickmanlabs.com/lightwindow/
Script name: Uploadify
Details: Uploadify is a jQuery plugin that allows the easy integration of a multiple (or single) file uploads on your website.
Script Link: http://www.uploadify.com/download/
Script name: Page Peel
Details: It’s a page peel! Works like it sounds…and functions as well as it works. Who needs real life when you have jQuery?
Script Link: http://www.sohtanaka.com/web-design/simple-page-peel-effect-with-jquery-css/
Script name: Sliding Login Panel
Details: An elegant answer to one of the most pervasive elements on any web page: The Login.
Script Link: http://web-kreation.com/demos/Sliding_login_panel_jquery/
Script name: ModalBox
Details: A neat little JS technique for creating modal dialogs or wizards without using conventional popups and page reloads.
Script link: http://www.wildbit.com/labs/modalbox/
Script name: Niceforms
Details: Forms looking too cookie cutter lately? Maybe just not as sexy as you’d like? This little DOM-scouring technique dresses up your form nice and proper!
Script link: http://www.emblematiq.com/projects/niceforms/
Script name: AJAX Star Rating Bar
Details: This is a rating bar script that allows users to rate things with no page refresh.
Script link: http://www.masugadesign.com/the-lab/scripts/unobtrusive-ajax-star-rating-bar/
Script name: An AJAX contact form
Details: A drop-in AJAX contact form that can be used in WP. PHP () Mail ready.
Script link: http://www.dustindiaz.com/ajax-contact-form/
Script name: AJAX poller script
Details: A poller script that uses Ajax to send vote to the server & receives results from the server.
Script Link: http://www.dhtmlgoodies.com/index.html?whichScript=ajax-poller
Script name: Browser-based instant messaging client
Details: Ajax powered IM system that sits right on your web site.
Script link: http://www.unwieldy.net/ajaxim/
Script name: Unobtrusive table sort script
Script Link: http://www.frequency-decoder.com/2006/09/16/unobtrusive-table-sort-script-revisited
Script name: Relay – AJAX directory manager
Details: Nice and small AJAX based online file and directory manager tool.
Script Link: http://ecosmear.com/relay/
Script name: Highslide JS thumbnail viewer
Detail: Animated, shadowed popups from thumbnails with CSS-styled captions.
Script Link: http://vikjavev.no/highslide/
Script name: SWFUpload
Details: Upload files via flash to get the flash-upload dialog goodness.
Script Link: http://swfupload.mammon.se/
note: a nice resource for latest ajax scripts that can be found online is: http://www.miniajax.com
Author : Joshu Thomas, Orangecopper Solutions (About Joshu)