jQuery Grid Plugin - jqGrid

It was my mistake by using GridUnload. This is the correct way:

jQuery("#maygrid").jqGrid('GridUnload');

But no matter that now the result in firebug is:

u.p is undefined

OK if someone have the same situation like me here is the solution:

- I made function for grid initialization:

function constructGrid(){
        $("#mygrid").jqGrid('GridUnload');
        jQuery("#mygrid").jqGrid({
            datatype: "local",
            height: 200,
            colNames:['One', 'Two', 'Three', 'Four','Five'],
            colModel:[
                {name:'col1',index:'col1', width:100},
                {name:'col2',index:'col2', width:100},
                {name:'col3',index:'col3', width:100},
                {name:'col4',index:'col4', width:100},
                {name:'col5',index:'col5', width:100}
            ],
            viewrecords: true,
            caption: "Some Caption"
        });
    }

- on document.ready – call :

constructGrid();

- on callback function which returns new data:

success: function(data){
                constructGrid();
                for(var i = 0; i <= data.length; i++)
                    jQuery("#mygrid").jqGrid('addRowData', i+1, data[i]);
            }

And that works for me.