Sigma visual php ajax framework is a set ajax gui components with wysiwyg visual builder. With this powerful builder, developers can build web application just like what you do in Visual studio or Delphi. WYSIWYG gui builder. Do everything by drag & drop. Significant development time reduction. More than 35 common components, including tabs,tree, treegrid, calendar, menu, dialog, timeline and many other web GUI components. Rich client-side API, working with any backend (php, .Net, Java, python) or static HTML pages. Wide cross-browser compatibility, IE6+, Firefox1.5+, Opera9+, Safari3+ and Google Chrome. Detailed manual and full api documentation with tons of samples. Ever increasing code snippets. Compatible with jQuery, prototype, mootools and other frameworks. Dual licenses - Commercial License and LGPL license both available.