using plupload and with django to limit files uploading with some effect!

plupload_init.js

var maxfiles = {{ maxfiles }}; // {{ maxfiles }} returns from views.py
$(function() {
   $("#uploader").pluploadQueue({
       runtimes : 'gears', // Initialize gears runtime
       url : '{{ obj.get_image_upload_url }}', // Url to current object image uploading url
       max_file_size : '4mb',
       chunk_size: '4mb',
       multiple_queues : true,
       multi_selection: false, // It's necessary for file uploading limit 
       rename: true,
       drop_element: 'uploader',
       sortable: true,
       filters: [
       		{title : "Image files", extensions : "jpg,gif,png"}
       ],
       headers : {'X-Requested-With' : 'XMLHttpRequest', 'X-CSRFToken' : '{{csrf_token}}'}, // Initialize CSRFToken headers for django-csrf_token
               
        init : {
            FilesAdded: function(up, files) { // Fire up after file added to uploader
                plupload.each(files, function(file) {
                    if (up.files.length > maxfiles) { // If count of files greater than 'maxfiles' then remove it
                        up.removeFile(file);
                    }
                });
                if (up.files.length >= maxfiles) { // If count of files greater than 'maxfiles' then hide add-files button
                    $('#uploader_browse').hide("slow");
                }
            },
            FilesRemoved: function(up, files) {
                if (up.files.length < maxfiles) {
                    $('#uploader_browse').fadeIn("slow");
                }
            }
        }
    });
});