// $Id: jquery.form.js,v 1.2 2007/11/19 10:05:48 goba Exp $

/*
 * jQuery Form Plugin
 * version: 2.01 (10/31/2007)
 * @requires jQuery v1.1 or later
 *
 * Examples at: http://malsup.com/jquery/form/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
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$.fn.ajaxSubmit = function (o) {
  if (typeof o == "function") {
      o = {success: o};
  }
  o = $.extend({url: this.attr("action") || window.location.toString(), type: this.attr("method") || "GET"}, o || {});
  var p = {};
  $.event.trigger("form.pre.serialize", [this, o, p]);
  if (p.veto) {
      return this;
  }
  var a = this.formToArray(o.semantic);
  if (o.data) {
      for (var n in o.data) {
          a.push({name: n, value: o.data[n]});
      }
  }
  if (o.beforeSubmit && o.beforeSubmit(a, this, o) === false) {
      return this;
  }
  $.event.trigger("form.submit.validate", [a, this, o, p]);
  if (p.veto) {
      return this;
  }
  var q = $.param(a);
  if (o.type.toUpperCase() == "GET") {
      o.url += (o.url.indexOf("?") >= 0 ? "&" : "?") + q;
      o.data = null;
  } else {
      o.data = q;
  }
  var r = this, callbacks = [];
  if (o.resetForm) {
      callbacks.push(function () {r.resetForm();});
  }
  if (o.clearForm) {
      callbacks.push(function () {r.clearForm();});
  }
  if (!o.dataType && o.target) {
      var u = o.success || function () {};
      callbacks.push(function (a) {if (this.evalScripts) {$(o.target).attr("innerHTML", a).evalScripts().each(u, arguments);} else {$(o.target).html(a).each(u, arguments);}});
  } else if (o.success) {
      callbacks.push(o.success);
  }
  o.success = function (a, b) {for (var i = 0, max = callbacks.length; i < max; i++) {callbacks[i](a, b, r);}};
  var v = $("input:file", this).fieldValue();
  var w = false;
  for (var j = 0; j < v.length; j++) {
      if (v[j]) {
          w = true;
      }
  }
  if (o.iframe || w) {
      if ($.browser.safari && o.closeKeepAlive) {
          $.get(o.closeKeepAlive, fileUpload);
      } else {
          fileUpload();
      }
  } else {
      $.ajax(o);
  }
  $.event.trigger("form.submit.notify", [this, o]);
  return this;

  function fileUpload() {
      var d = r[0];
      var f = $.extend({}, $.ajaxSettings, o);
      var h = "jqFormIO" + $.fn.ajaxSubmit.counter++;
      var i = $("<iframe id=\"" + h + "\" name=\"" + h + "\" />");
      var j = i[0];
      var k = $.browser.opera && window.opera.version() < 9;
      if ($.browser.msie || k) {
          j.src = "javascript:false;document.write(\"\");";
      }
      i.css({position: "absolute", top: "-1000px", left: "-1000px"});
      var l = {responseText: null, responseXML: null, status: 0, statusText: "n/a", getAllResponseHeaders: function () {}, getResponseHeader: function () {}, setRequestHeader: function () {}};
      var g = f.global;
      if (g && !$.active++) {
          $.event.trigger("ajaxStart");
      }
      if (g) {
          $.event.trigger("ajaxSend", [l, f]);
      }
      var m = 0;
      var n = 0;
      setTimeout(function () {
        i.appendTo("body");
        j.attachEvent ? j.attachEvent("onload", cb) : j.addEventListener("load", cb, false);
        var a = d.encoding ? "encoding" : "enctype";
        var t = r.attr("target");
        r.attr({target: h, method: "POST", action: f.url});
        d[a] = "multipart/form-data";
        if (f.timeout) {
          setTimeout(function () {
            n = true;
            cb();
          }, f.timeout);
        }
        d.submit();
        r.attr("target", t);
      }, 10);

      function cb(event) {
          if (m++) {
              return;
          }
          j.detachEvent ? j.detachEvent("onload", cb) : j.removeEventListener("load", cb, false);
          var a = true;
          try {
              if (n) {
                  throw "timeout";
              }
              var b, doc;
              doc = j.contentWindow ? j.contentWindow.document : j.contentDocument ? j.contentDocument : j.document;
              l.responseText = doc.body ? doc.body.innerHTML : null;
              l.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
              if (f.dataType == "json" || f.dataType == "script") {
                  var c = doc.getElementsByTagName("textarea")[0];
                  b = c ? c.value : l.responseText;
                  if (f.dataType == "json") {
                      eval("data = " + b);
                  } else {
                      $.globalEval(b);
                  }
              } else if (f.dataType == "xml") {
                  b = l.responseXML;
                  if (!b && l.responseText != null) {
                      b = toXml(l.responseText);
                  }
              } else {
                  b = l.responseText;
              }
          } catch (e) {
              a = false;
              $.handleError(f, l, "error", e);
          }
          if (a) {
              f.success(b, "success");
              if (g) {
                  $.event.trigger("ajaxSuccess", [l, f]);
              }
          }
          if (g) {
              $.event.trigger("ajaxComplete", [l, f]);
          }
          if (g && !--$.active) {
              $.event.trigger("ajaxStop");
          }
          if (f.complete) {
              f.complete(l, a ? "success" : "error");
          }
          setTimeout(function () {
            i.remove();
            l.responseXML = null;
          }, 100);
      }


      function toXml(s, a) {
          if (window.ActiveXObject) {
              a = new ActiveXObject("Microsoft.XMLDOM");
              a.async = "false";
              a.loadXML(s);
          } else {
              a = (new DOMParser).parseFromString(s, "text/xml");
          }
          return a &&
              a.documentElement &&
              a.documentElement.tagName != "parsererror" ? a : null;
      }

  }

}