How to use free jqGrid

Free jqGrid is a JavaScript plugin that displays table-based data in a lot of different configurations. The data can be loaded from JavaScript array or be loaded from the server (in JSON or XML format). It supports client-side paging, sorting and filtering on server-side. One can group the displayed data, create the data as pivot table (made aggregation of data), display the data in the Tree form creates subgrids and so on. One can easily implement tree variants of editing of local or remote data.