jQuery Grid Plugin - jqGrid

First..many thanks for good AJAX grid, works very fine.

I works always with Firefox and i've building a little administration with jQuery grid. I hearn from my friend that jQuery grid don't working into IE7.

I don't seen what's the problem. I've using search form here, but once have no answer.

My code:

[code]

<script type=”text/javascript”>
jQuery(”#navgrid”).jqGrid({
           url:'grid/server.php?q=1',
        datatype: “json”,
           colNames:['ID','Land', 'Hoofdtekst', 'Subtekst','Tekst'],
           colModel:[
                   {name:'id',index:'id', width:10,editable:false,editoptions:{readonly:true,size:10}},
                   {name:'lang',index:'lang', width:20,editable:true,edittype:"select",editoptions:{value: "dutch:dutch;english:english;german:german"}},
                   {name:'mainkey',index:'mainkey', width:40,editable:true,editoptions:{size:25}},
                   {name:'subkey',index:'subkey', width:20, editable:true,editoptions:{size:10}},
                   {name:'descr',index:'descr', width:80,editable:true,editoptions:{size:10}}
           ],
           rowNum:25,
           rowList:[10,20,30],
           imgpath: 'grid/themes/sand/images',
           pager: jQuery('#pagernav'),
           sortname: 'id',
    viewrecords: true,
    sortorder: “asc”,
    caption:”Taalbestand”,
    height:'100%',
    width:950
})
.navGrid('#pagernav',
{edit:true,add:true,delete:true,search:true,reload:true}, //options
{
height:280,
msg:”De gegevens is met succes gewijzigd”,
Caption:”Edit”,
editCaption:”Wijzigen”,
bSubmit:”Wijzigen”,
bCancel:”Cancel”,
url:”grid/server.php?q=2″,
reloadAfterSubmit:true,
closeAfterEdit:true,
processData: “Bezig….”,
onclickSubmit: function() {
                 var sr = jQuery(”#pagernav”).getGridParam('selrow');
                 var rowData = jQuery(”#pagernav”).getRowData(sr);

                  this.editData = {”promot_id” : rowData['promot_id']};
                  retarr = {”promot_id” : rowData['promot_id']};
                  return retarr;
              }
}, // edit options
{
height:280,
msg:”De gegevens is met succes toegevoegd”,
Caption:”Edit”,
addCaption:”Toevoegen”,
bSubmit:”Toevoegen”,
bCancel:”Cancel”,
url:”grid/server.php?q=3″,
reloadAfterSubmit:true,
closeAfterAdd:true,
processData: “Bezig….”,
onclickSubmit: function() {
                 var sr = jQuery(”#pagernav”).getGridParam('selrow');
                 var rowData = jQuery(”#pagernav”).getRowData(sr);

                  this.addData = {”promot_id” : rowData['promot_id']};
                  retarr = {”promot_id” : rowData['promot_id']};
                  return retarr;
              }
}, // add options
{
reloadAfterSubmit:false,
url:”grid/server.php?q=4″,
deleteCaption:”Verwijderen”,
onclickSubmit: function() {
                 var sr = jQuery(”#pagernav”).getGridParam('selrow');
                 var rowData = jQuery(”#pagernav”).getRowData(sr);

                  this.addData = {”promot_id” : rowData['promot_id']};
                  retarr = {”promot_id” : rowData['promot_id']};
                  return retarr;
              }
} // del options
);
</script>

[/code]

The errormessage: Row 79, text 5, 'null' are empty or no object and Row 95, text 21, id or object are awaiting.

Can any help me with this problem?

[edit]

if i'm remove .navGrid('#pagernav', the grid works it, but i cann't editing, saving and remove.

[/edit]