jqgrid navbuttonadd

<script>
...
jQuery("#grid_id").navGrid("#pager",...).navButtonAdd("#pager",{parameters});
...
</script>

<script>
...
jQuery("#grid_id").jqGrid('navGrid',"#pager",...).jqGrid('navButtonAdd',"#pager",{parameters});
...
</script>

{ caption:"NewButton", buttonicon:"ui-icon-newwin", onClickButton:null, position: "last", title:"", cursor: "pointer"}