jQuery Grid Plugin - jqGrid

I used:

   $("#grid")
        .jqGrid(options)
        .navGrid('#pager',
        {}, //options
        editOptions,
        addOptions,
        delOptions,
        searchOptions
    );

  var addOptions = {mtype:"POST"};

It should send data to your server at the URL you configured under options.

Your server should then parse the info sent and add the entry server side