jQuery.extend({ createUploadIframe: function (id, uri) {
    var frameId = 'jUploadFrame' + id; var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"'; if (window.ActiveXObject) {
        if (typeof uri == 'boolean') { iframeHtml += ' src="' + 'javascript:false' + '"'; }
        else if (typeof uri == 'string') { iframeHtml += ' src="' + uri + '"'; } 
    }
    iframeHtml += ' />'; jQuery(iframeHtml).appendTo("body"); return jQuery('#' + frameId).get(0);
}, createUploadForm: function (id, fileElementId, data) {
    var formId = 'jUploadForm' + id; var fileId = 'jUploadFile' + id; var strtarget = 'jUploadFrame' + id; var form = jQuery('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" target="' + strtarget + '" enctype="multipart/form-data"></form>'); if (data) { for (var i in data) { jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form); } }
    if (fileElementId.indexOf("#") >= 0) { var sp_fileElementId = fileElementId.split("#"); var oldElement = jQuery('#' + sp_fileElementId[0]).find('#' + sp_fileElementId[1]); } else { var oldElement = jQuery('#' + fileElementId); }
    var newElement = jQuery(oldElement).clone(); jQuery(oldElement).attr('id', fileId); jQuery(oldElement).before(newElement); jQuery(oldElement).appendTo(form); jQuery(form).css('position', 'absolute'); jQuery(form).css('top', '-1200px'); jQuery(form).css('left', '-1200px'); jQuery(form).appendTo('body'); return form;
}, ajaxFileUpload: function (s) {
    s = jQuery.extend({}, jQuery.ajaxSettings, s); var id = new Date().getTime()
    var form = jQuery.createUploadForm(id, s.fileElementId, (typeof (s.data) == 'undefined' ? false : s.data)); var io = jQuery.createUploadIframe(id, s.secureuri); var frameId = 'jUploadFrame' + id; var formId = 'jUploadForm' + id; if (s.beforeSend)
        s.beforeSend(); if (s.global && !jQuery.active++) { jQuery.event.trigger("ajaxStart"); }
    var requestDone = false; var xml = {}
    if (s.global)
        jQuery.event.trigger("ajaxSend", [xml, s]); var uploadCallback = function (isTimeout) {
            var io = document.getElementById(frameId); try { if (io.contentWindow) { xml.responseText = io.contentWindow.document.body ? io.contentWindow.document.body.innerHTML : null; xml.responseXML = io.contentWindow.document.XMLDocument ? io.contentWindow.document.XMLDocument : io.contentWindow.document; } else if (io.contentDocument) { xml.responseText = io.contentDocument.document.body ? io.contentDocument.document.body.innerHTML : null; xml.responseXML = io.contentDocument.document.XMLDocument ? io.contentDocument.document.XMLDocument : io.contentDocument.document; } } catch (e) { jQuery.handleError(s, xml, null, e); }
            if (xml || isTimeout == "timeout") {
                requestDone = true; var status; try {
                    status = isTimeout != "timeout" ? "success" : "error"; if (status != "error") {
                        var data = jQuery.uploadHttpData(xml, s.dataType); if (s.success)
                            s.success(data, status); if (s.global)
                            jQuery.event.trigger("ajaxSuccess", [xml, s]);
                    } else { jQuery.handleError(s, xml, status); } 
                } catch (e) { status = "error"; jQuery.handleError(s, xml, status, e); }
                if (s.global)
                    jQuery.event.trigger("ajaxComplete", [xml, s]); if (s.global && ! --jQuery.active)
                    jQuery.event.trigger("ajaxStop"); if (s.complete)
                    s.complete(xml, status); jQuery(io).unbind()
                setTimeout(function () { try { jQuery(io).remove(); jQuery(form).remove(); } catch (e) { jQuery.handleError(s, xml, null, e); } }, 100)
                xml = null
            } 
        }
    if (s.timeout > 0) { setTimeout(function () { if (!requestDone) uploadCallback("timeout"); }, s.timeout); }
    try { var form = "#" + formId; jQuery(form).attr('action', s.url); jQuery(form).attr('method', 'POST'); jQuery(form).submit(); } catch (e) { jQuery.handleError(s, xml, null, e); }
    jQuery('#' + frameId).load(uploadCallback); return { abort: function () { } };
}, uploadHttpData: function (r, type) {
    var data = !type; data = type == "xml" || data ? r.responseXML : r.responseText; if (type == "script")
        jQuery.globalEval(data); if (type == "json")
        eval("data = " + data); return data;
} 
})