[Solved] Client-Side Effects API and Documentation

[mobiledna]

I've seen several client-side effects code snippets like the ones shown below.    Where are these functions defined (eg: "$telerik.fx.slide", "$telerik.fx.rewind", "$telerik.fx.zoom", etc)  ?  Where can I find the documentation and code samples  for these functions ?   Thank you!

// default "slide" effect settings
var fx = $.telerik.fx.slide.defaults();

$('div#contextMenu').each(function (index) {
    $.telerik.fx.rewind(fx, $(this).find('.t-group'), { direction: 'bottom' }, function () {
      $(this).remove();
    });
 });