code not working properly in IE

code not working properly in IE

hi guys,

i have a select dropdown list working fine in firefox...but in IE it is not dynamically changing.
i am using Jquery 1.32

here is my code

  1. $(function() {
        $(document).ready(function() {
            $('#provider').load("ajax/order.php?atask=getallproviders", {
                'current' : $('#current').val()
            });
           
            $('#tarif').load("ajax/order.php?atask=gettarifs", {
                'selectprovider' : $('#current').val(),
                'current' : $('#current').val()
            });
           
        });

        $('#provider').change(function() {
            $('#tarif').html('Laden ...');
            $('#tarif').load("ajax/order.php?atask=gettarifs", {
                'selectprovider' : $('#providerselect').val(),
                'current' : $('#current').val()
            });
        });
       
        $('#tarif').change(function() {
            $('#grundpr').html('Laden ...');
            $('#arbeitspr').html('Laden ...');
            $('#arbeitsprnt').html('Laden ...');
            $('#jahrkost').html('Laden ...');

           
        });
    });





























the problematic part is the part where $('#provider').change(function() {
it is not working properly.
anyone has a hint? tested with IE-8 and IE-7