My requirement is to develop the file upload functionality using Ajax request. The only condition is that my application works with only IE7. So I cannot use Jquery FormData using which I can submit the form values. I am currently using the following piece of code for my file upload functionality. But it is not working. Can anybody share the code by which I can upload a file and send form data in IE7?
<form id="CreateAttachmentForm" method="post"  enctype="multipart/form-data"  action="../../uploadFile" >
<input type="file" id="fileupload1" name="fileupload1" accept="image/*,application/pdf"    "/>
<contact:contactbutton
                            id="printButton"
                            style="position:relative; width:90px; top:27px; height:30px; left:160px;"
                            textTop="7px"
                            defaultButton="false"
                            tabindex=""
                            accesskey="C"
                            onClick="return createAttachmentRequest(this.form, this.fileupload1 );"
                            onfocus="if(event.altKey){click();}">
                                <u>C</u>reate
                 </contact:contactbutton>
function createAttachmentRequest(form,fileupload1){
              att=form.action;
    $.post(att, {fileupload1: fileupload1.value}).done(function(data){
    });
    return true;
