Internet Explorer 10 GPF

[Pierre]

Hi all
I have this simple code, executed under Save button:

Code:

function saveMemberType()
{
  $('#form_member_type').form('submit',
    {
      onSubmit: function()
      {
        return $(this).form('validate');
      },
      success: function(result){
      if (result.substring(0,5) == "Error")
        $.messager.alert('Info',result,'error');
      else
     	  { 
          $('#dlg_member_type_edit').dialog('close');
          $('#member_type').treegrid('reload');
        }
      }
    });        
}

It works perfect under Chrome, Firefox and Internet Explorer 9, but under IE10 it crashes :

Problem signature:
  Problem Event Name:   APPCRASH
  Application Name:   IEXPLORE.EXE
  Application Version:   10.0.9200.16618
  Application Timestamp:   51b2f318
  Fault Module Name:   MSHTML.dll
  Fault Module Version:   10.0.9200.16618
  Fault Module Timestamp:   51b30064
  Exception Code:   c0000005

Any idea why?

[Pierre]

I found that IE10 crashes on this line:

$('#dlg_member_type_edit').dialog('close');

any idea why?
Thanks.

[Pierre]

Hello
does somewhere exists something for IE like Firebug for Firefox?
I found some Firebug lite but I can not/ I don't know how to install it.
I try to use internal IE debugger but above code make crash (GPF) before it show why is crashed ..