JavaScript Garden is an awesome and growing collection of JavaScript documentation about the most quirky parts of the JavaScript programming language.

It gives advice to avoid common mistakes, subtle bugs, as well as performance issues and bad practices that non-expert JavaScript programmers may encounter on their endeavours into the depths of the language.

Former knowledge of the language is strongly recommended in order to understand the topics covered in this guide. In order to learn the basics of the language, please head over to the excellent guide on the Mozilla Developer Network.

VM FormValidator is a JavaScript form validation script based on MooTools. It aims to provide simple, reliable validation for all form element types across all browsers in an unobtrusive manner.

It is 100% style-able via CSS and allows for custom validations and error messages. Error messages can be displayed above the form, above each input, or below each input.

VMFormValidator should not be used as a replacement for server-side validation (using PHP, .NET, etc) because JavaScript can be disabled.

Gartner predicts that the demand and development of open-source Business Intelligence tools will grow five times through 2012. The adoption of open-source tools for reporting and business intelligence is understandable as modern businesses require interactive tools for processing and analyzing data. They need dashboards, information portals and dynamic visualizations that they use to view quick overviews, drill-down information, compare data, and manipulate information.

For web developers and designers, there are a lot of opportunities to learn experiment and develop web applications and portal that use business intelligence (BI) tools. For developers who want greep new opportunities, here is a list of open source business intelligence tools that they can study and experiment with.

Free & Open Source BI Tools

SpagoBI

Supported by Engineering Group, SpagoBI is a complete open source BI solution available under GNU LGPL License. SpagoBI offers comprehensive features that can be used to develop enterprise level applications for reporting, analytics, dashboards and KPIs.

It supports OALP engine for analysis, charting controls for graphical representation of data, geographical engines for managing geographical data and several other useful features for managing/publishing documents and monitoring processes.

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Scrumblr is a web-based simulation of a physical agile sprint board that supports real-time collaboration. It is built using node.js, websockets (using socket.io), CSS3, and jQuery.

Scrumblr works on up to date Chrome and Firefox browsers. Enable websockets for optimal performance.

If you have a worldwide audience, or your site is hosted in a different country from where your visitors live, it is useful to see how long it takes to load your web pages.

With Loads.in you simply enter the full URL of the page you want to check, and the page is retreived by a browser at a random location. For each subsequent check you can choose a specific location and browser profile.

Loads.in is real time website loading speed checker that gives you the possibility to see how fast your (or any) website loads in a real browser from over 50 locations worldwide.

Loads.in is a unique and free tool which:

• Checks your site with real browsers
• Choose from Safari, Chrome, Internet Explorer or FireFox browser profiles
• Checks your site from over 50 locations
• Provides snapshots and waterfall charts for each check

Got a lot of content to manage in a limited browser space? Try Smart Paginator!

Smart Paginator is free jQuery plugin for pagination that you can use to paginate large amounts of data or content without sacrificing your design and user experience. You can integrate SmartPaginator is any web application and style it according to your design scheme. All the navigation logic is built-in to the code and can be modified and controlled with simple parameters.

Writing clean and efficient CSS is something that most Web designers and developers would want to sleep over. Fortunately, now we there are a number of good online CSS generators that take care of CSS while you focus on your design.

The CSS3 Generator is a simple and free web application to generates CSS3. You can use CSS3 Generator to control a number of CSS3 attributes like:

• border-radius
• box-shadow
• background-gradients
• opacity

The interactive interface allows you to use dragging sliders to set your preferences and get the desired CSS3 code.

Website developers that work in various industry verticals understand that there is no universal architecture for websites. Each industry requires a different set of unique requirements and features. Same is the case with government websites that require a number of essential features of security, reliability, and compliance rules such as Section 508.

OpenPublic is an open source content management system based on Drupal and tailored for building websites for government.

Powered by a strong community of users and developers, OpenPublic is a ‘one-in-all’ solution for developing a complete government website in easy steps.

D3.JS is a small, free JavaScript visualization library for manipulating HTML documents based on data. D3 can help you quickly visualize your data as HTML or SVG, handle interactivity, and incorporate smooth transitions and staged animations into your pages. You can use D3 as a visualization framework (like Protovis), or you can use it to build dynamic pages (like jQuery).

D3 is not a traditional visualization framework. Rathser than provide a monolithic system with all the features anyone may ever need, D3 solves only the crux of the problem: efficient manipulation of documents based on data. This gives D3 extraordinary flexibility, exposing the full capabilities of underlying technologies such as CSS3, HTML5 and SVG. D3 is extremely fast, supporting large datasets and dynamic behaviors for interaction and animation.

Ever wanted to build MSDN-style documentation? Try Sandcastle Help File Builder.

SandCastle is a tool for generating MSDN-style help file/documentation from .Net assemblies and comments files. It works natively with the source code and uses project assembly file to create documentation topics, and XML comments files to generate API references. With standalone version of SandCastle GUI, you can modify appearance and control features of the compiled help file.

Features

• Generates documentation in .CHM, .HsX, .mshc, and Web formats (HTML & ASP.Net)
• Simple deployment and integration of help files
• Works natively with Microsoft Visual Studio 2005/2008 solutions
• Works with both executable (.EXE) and library (.DLL) assemblies as documentation sources
• Complete error logging and error handling for the build process
• Allows integration of standard HTML files with the table of contents
• Built-in support for localization and translation

Requirements

• Microsoft .Net Framework 3.5 SP1
• Microsoft HTML Help Workshop
• Visual Studio 2008 SDK v1.0
• Microsoft Help Library Manager & Help Library Agent