how to stop file upload process in asp.net?

See more:

C#

ASP.NET4

hi to all,
In my application there is a functionality to upload a video file. if a user uploads a big video file and before uploading if he presses a cancel button just panel get closed but uploading process does not stops. I have used a function for stop the uploading process it works fine in Mozilla Firefox but it is not working in i.e (internet explorer) please help me ..
i am attaching that function below

function cancelUpload() {
            isUploadCanceled = true;
            $find('<%=modalpopupvideo.ClientID%>').hide();
            
            var up = document.getElementById('<%=flpvideo.ClientID%>');
            up.setAttribute("type", "input");
            up.setAttribute("type", "file");
            if (window.stop) {
               
                window.stop();

            }

            document.getElementById('myHiddenDiv').style.display = 'none';
           

        }

please help.. thanks in advance