http://stackoverflow.com/questions/12336060/simple-jquery-post-not-working-on-internet-explorer-9-access-denied

gistfile1.txt

            $('#contact-send').click(function(){
                if($.browser.msie && window.XDomainRequest) {
                    // Use Microsoft XDR
                    var xdr = new XDomainRequest();
                    xdr.open("POST", "functions/db-contact-xdr.php");
                    xdr.send("&contact_name="+$('#contact-name').val()+"&contact_email="+$('#contact-email').val()+"&contact_subject="+$('#contact-subject').val()+"&contact_message="+$('#contact-message').val()+""); 
                    xdr.onload = function () {
                        var dom = new ActiveXObject("Microsoft.XMLDOM");
                        dom.async = false;
                        dom.loadXML(xdr.responseText);
                        $("mail",xdr.responseText).each(function(id) {
                            var mail = $("mail",xdr.responseText).get(id);
                            }
                        });
                    };
                }else{
                    $.post('functions/db-contact.php',{
                        contact_name: $('#contact-name').val(), 
                        contact_email: $('#contact-email').val(),
                        contact_subject: $('#contact-subject').val(),
                        contact_message: $('#contact-message').val()
                    },function(x){
                        $("mail",x).each(function(id) {
                            var mail = $("mail",x).get(id);
                            }
                        });
                    });
                }
            });