uploadify多次加载导致页面无法加载

function upld() {
    $('#file_upload').uploadify({
        'formData'     : {'seccode':'<?php echo get_cookie('auth')?>'},
        'swf'      : '<?php echo site_url(JS_ROOT.'uploadify/uploadify.swf');?>',
        'uploader' : '<?php echo site_url('upload/uploadsave');?>',
        'auto'     : true,
        'removeCompleted': false,
        'debug':true,
        'buttonImage':'<?php echo site_url(IMAGE_ROOT.'sns/stupload.gif');?>',
        'width':240,
        'height':100,
        'buttonText':'',
        'fileTypeExts':'*.jpg;*.gif;*.png;*.jpeg;',
        'fileSizeLimit' : '4MB',
        'queueSizeLimit':uploadcount,
        'removeTimeout': 0,
        'successTimeout': 300,
        'overrideEvents':['onSelect'],
        'onSelect' : function(file) {

        },
        'onUploadStart' : function(){

        },
        'onUploadSuccess' : function(file,data,response) {

            uploadcount = uploadcount-1;
            $('#file_upload').uploadify('settings','queueSizeLimit',uploadcount);

            $('#attaction').html("单次可以批量上传10件作品，您已经上传了 "+(10-uploadcount)+" 件作品。");
        },
        'onQueueComplete' : function(queueData) {
            //可做自动跳转
            if(uploadcount > 0) {

            }
        }
    });
}