jQuery Grid Plugin - jqGrid

I have gone through the steps of saving a datagrid to the server once a user changes the columns they want displayed, but what I have found is that when I use

var gridInfo = JSON.stringify($("#list").getGridParam());

the onSelectRow: paramater is not returned, which is a function that uses the id of the row to display some information elsewhere on the page. So what I'm now trying to do is just see if I can add the onSelectRow through using setGridParam after the grid has been generated. But this doesnt seem to be working. Here is what I have right now. The $data_grid_params is either build from the default values I have predefined, or pulled from the server if the user has saved them previously.

jQuery("list").jqGrid($data_grid_params).navGrid('#pager',{edit:false,add:false,del:false,search:false});
   
    jQuery("list").setGridParam({onSelectRow: function(id){
        if(id && id!==lastSel){
            if ($('#job_data').is(":hidden")) {
                $('#job_data').slideDown("slow");
            }
            lastSel=id;
            loadJobListCalendar(id);
        }       
    }});

jQuery("#change_columns").click(function() {
        jQuery("#list").setColumns({
            left:50,
            top:50,
            height:495           
        });
    });
   
    jQuery("#save_grid").click(function() {
        jQuery('#list').setSelection('1');
        var gridInfo = JSON.stringify($("#list").getGridParam());
        saveFilter(gridInfo);
    });

Any guidance here would be greatly appreciated.