That old chestnut - input type = file; check file size

Hi all - this is driving me crazy but I can't find a solution. I posted a while back that I had a file input in a form that I wanted to test the file to ensure it is not over a specified file size before submission so that the form data could be submitted and emailed.

I got everything working except on FF.

Now with plenty of head banging I managed to get it to work on all browsers and FF. Great; but it stopped working on IE. Brilliant! :mad: Why can't W3C enforce a single code base which everyone else just puts their eye candy on???

Any way - I've tried several solutions and I feel so close but so far - can any one help??

Code:

---

<div class="fileUploadEntry">
      <input type="file" id="attachment1" name="attachment[]" onchange="attachmentsGoodToGo.value = findSize(this, 5242880, 1)" />
 </div>

function findSize(fileInput, maxFileSize, id) {
        //limit is set to 5242880 (5mb) in bytes

        //simple detect IE version script
        var ver = getInternetExplorerVersion();
        if(ver > -1)
        {
                //for IE
                var exceeded = false;
                var idNumber = id;
                alert("id = "+id);
                var elementID = "attachment"+idNumber;
                var oas = new ActiveXObject("Scripting.FileSystemObject");
//the above line no longer works because of IE security.
//cannot find a jQuery solution to this
                var d = document.send.elementID.value;
                var e = oas.getFile(d);
                var f = e.size;
               
                alert("theFile = " + d);
                alert("theFile value = " + e);
                alert("fileSize = " + f);
                if(f > maxFileSize)
                {
                        var exceeded = true;
                        //this file is greater than 5mb - warn the user
                        alert("This file exceeds the 5Mb limit - please click Choose File and reselect or compress the file.");
                }
        }
        else {
                //for everyone else
                var exceeded = false, bytes;
                if(fileInput.files && ( bytes = fileInput.files[0].size) > maxFileSize)
                {
                        exceeded = true;
                        alert("This file exceeds the 5Mb limit - please click Choose File and reselect or compress the file.");
                }
        }
        return exceeded ? 0 : 1;
}

---

Any pointers would be amazing!

cheers

frank