validating the filesize before upload(question)

Discussion in 'Programming' started by cris02, May 29, 2007.

0
  1. #1
    Hello,

    i want to ask how can i detect the filesize before i upload to server. i have here an example i found it on the net. but the problem, it detects only the size of an image file, what i need is to validate any files specially audio files. If you have any idea pls help.. thanks
    <head>
<script type="text/javascript">
function showSize(f) {
if ((new Image()).fileSize) {
var img = new Image();
img.onload = imgOnload;
img.onerror = imgOnerror;
img.src = f.elements['myFile'].value;
}
}
function imgOnload() {
if (this.fileSize) {
var size = this.fileSize;
if (size > 1024) {
size = Math.round((size / 1024) * 100) / 100;
}
document.write(
'The file is ' + size +
(this.fileSize > 1024 ? ' kilobytes' : ' bytes') +
' in size.'
);
}
}
function imgOnerror() {
alert('The file is not an image or did not load.');
}
</script>
</head>
<body>
<form name="myForm">
<input type="file" name="myFile" onchange="showSize(this.form);">
</form>
    Code (markup):

     
    cris02, May 29, 2007 IP
  2. wing

    wing Active Member

    Messages:
    210
    Likes Received:
    14
    Best Answers:
    0
    Trophy Points:
    58
    #2
    wing, May 30, 2007 IP
  3. cris02

    cris02 Member

    Messages:
    55
    Likes Received:
    0
    Best Answers:
    0
    Trophy Points:
    41
    #3
    cris02, Jun 5, 2007 IP