file upload control-- input files && input files 0 not working in ie9

[sushmaja.arumalla.9]

I have a problem with the file upload control in MVC.
My DOM element looks like

@Html.TextBoxFor(m => m.logo, new { id = "logoUpload", type = "file", @accept = "image/*", @onchange = "showpreview(this);" })

onChange event looks like

function showpreview(input) {
    if (input.files && input.files[0]) {
        var logo = $('#logoUpload')[0].value;
        var fileName = logo.match(/[^\/\\]+$/);
        var extension = fileName[0].substr((fileName[0].lastIndexOf('.') + 1));
        extension = extension.toLowerCase();
        if (extension != "jpe" && extension != "jpg" && extension != "jpeg" && extension != "gif" && extension != "png" && extension != "bmp" && extension != "tif" && extension != "tiff" && extension != "psd") {
            successOrErrorMessageResponse("Please select a image file types jpg, gif, png, tif or bmp", "fail");
            return false;
        }
        $('#ajax_loader_center').show();
        var reader = new FileReader();
        reader.onload = function (e) {
            $('#preview_Logo').attr('src', e.target.result);
            $('#preview_Logo').show();
            $('#ajax_loader_center').hide();
        }
        reader.readAsDataURL(input.files[0]);
    } else {
        $('#preview_Logo').attr('src', input.value);
    }
}

The problem is that the input.files in the onChange function returns Undefined and the file is not uploaded in the IE browsers.(IE-9 and IE-8). It is working fine in IE-10 and above, Firefox, Chrome etc..

Please anyone help me how to solve this issue

Thanks in Advance,
Sushmaja Arumalla