Documentation

fileSizeLimit

Input TypeNumber

The maximum size allowed for a file upload. This value can be a number or string. If it’s a string, it accepts a unit (B, KB, MB, or GB). The default unit is in KB. You can set this value to 0 for no limit.

Demo

<input type="file" name="file_upload" id="file_upload" />

1	<input type="file" name="file_upload" id="file_upload" />

$(function() {
    $("#file_upload").uploadify({
        'fileSizeLimit' : '100KB',
        'swf'           : '/uploadify/uploadify.swf',
        'uploader'      : '/uploadify/uploadify.php' 
    });
});

$(function() {

$("#file_upload").uploadify({

'fileSizeLimit' : '100KB',

'swf' : '/uploadify/uploadify.swf',

'uploader' : '/uploadify/uploadify.php'

});