What does "Async mode loading support (AJAX)" on your produc

What does “Async mode loading support (AJAX)” on your product info page “scbr.com/docs/products/dhtmlxMenu/
mean?

The dhtmlxMenu can load its
content from XML file/string. It can load all the content or content for some
specified node. But it can be done only by direct API calls (menu.loadXML or
menu.loadXMLFor(node_id); ). There is no way to load items automatically (on
mouseover).