jQuery.fn.ajaxSubmit = function(options) {
if (typeof options == 'function')
options = { success: options };
options = options || {};
options.url = options.url || this.attr('action') || window.location;
options.type = options.type || this.attr('method') || 'GET';
var a = this.formToArray(options.semantic);
if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) return this;
var veto = {};
jQuery.event.trigger('form.submit.validate', [a, this, options, veto]);
if (veto.veto)
return this;
var q = jQuery.param(a);
if (options.type.toUpperCase() == 'GET') {
options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
options.data = null; 
}
else
options.data = q;
var $form = this, callbacks = [];
if (options.resetForm) callbacks.push(function() { $form.resetForm(); });
if (options.clearForm) callbacks.push(function() { $form.clearForm(); });
if (!options.dataType && options.target) {
var oldSuccess = options.success || function(){};
callbacks.push(function(data, status) {
jQuery(options.target).attr("innerHTML", data).evalScripts().each(oldSuccess, [data, status]);
});
}
else if (options.success)
callbacks.push(options.success);
options.success = function(data, status) {
for (var i=0, max=callbacks.length; i < max; i++)
callbacks[i](data, status);
};
var files = jQuery('input:file', this).fieldValue();
var found = false;
for (var j=0; j < files.length; j++)
if (files[j]) 
found = true;
if (options.iframe || found)
fileUpload();
else
jQuery.ajax(options);
jQuery.event.trigger('form.submit.notify', [this, options]);
return this;
function fileUpload() {
var form = $form[0];
var opts = jQuery.extend({}, jQuery.ajaxSettings, options);  
var id = 'jqFormIO' + jQuery.fn.ajaxSubmit.counter++;
var $io = jQuery('<iframe id="' + id + '" name="' + id + '" />');
var io = $io[0];
var op8 = jQuery.browser.opera && window.opera.version() < 9;
if (jQuery.browser.msie || op8) io.src = 'javascript:false;document.write("");';
$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
form.method = 'POST';
form.encoding ? form.encoding = 'multipart/form-data' : form.enctype = 'multipart/form-data';
var xhr = {
responseText: null,
responseXML: null,
status: 0,
statusText: 'n/a',
getAllResponseHeaders: function() {},
getResponseHeader: function() {},
setRequestHeader: function() {}
};
var g = opts.global;
if (g && ! jQuery.active++) jQuery.event.trigger("ajaxStart");
if (g) jQuery.event.trigger("ajaxSend", [xhr, opts]);
var cbInvoked = 0;
var timedOut = 0;
setTimeout(function() {
$io.appendTo('body');
io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
form.action = opts.url;
var t = form.target;
form.target = id;
if (opts.timeout)
setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
form.submit();
form.target = t;
}, 10);
function cb() {
if (cbInvoked++) return;  
io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);
var ok = true;
try {
if (timedOut) throw 'timeout';
var data, doc;
doc = io.contentWindow ? io.contentWindow.document : io.contentDocument ? io.contentDocument : io.document;
xhr.responseText = doc.body ? doc.body.innerHTML : null;
xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
if (opts.dataType == 'json' || opts.dataType == 'script') {
var ta = doc.getElementsByTagName('textarea')[0];
data = ta ? ta.value : xhr.responseText;
if (opts.dataType == 'json')
eval("data = " + data);
else
jQuery.globalEval(data);
}
else if (opts.dataType == 'xml') {
data = xhr.responseXML;
if (!data && xhr.responseText != null)
data = toXml(xhr.responseText);
}
else {
data = xhr.responseText;
}
}
catch(e){
ok = false;
jQuery.handleError(opts, xhr, 'error', e);
}
if (ok) {
opts.success(data, 'success');
if (g) jQuery.event.trigger("ajaxSuccess", [xhr, opts]);
}
if (g) jQuery.event.trigger("ajaxComplete", [xhr, opts]);
if (g && ! --jQuery.active) jQuery.event.trigger("ajaxStop");
if (opts.complete) opts.complete(xhr, ok ? 'success' : 'error');
setTimeout(function() { 
$io.remove(); 
xhr.responseXML = null;
}, 100);
};
function toXml(s, doc) {
if (window.ActiveXObject) {
doc = new ActiveXObject('Microsoft.XMLDOM');
doc.async = 'false';
doc.loadXML(s);
}
else
doc = (new DOMParser()).parseFromString(s, 'text/xml');
return (doc && doc.documentElement && doc.documentElement.tagName != 'parsererror') ? doc : null;
}
};
};
jQuery.fn.ajaxSubmit.counter = 0;
jQuery.fn.ajaxForm = function(options) {
return this.each(function() {
jQuery("input:submit,input:image,button:submit", this).click(function(ev) {
var $form = this.form;
$form.clk = this;
if (this.type == 'image') {
if (ev.offsetX != undefined) {
$form.clk_x = ev.offsetX;
$form.clk_y = ev.offsetY;
} else if (typeof jQuery.fn.offset == 'function') {
var offset = jQuery(this).offset();
$form.clk_x = ev.pageX - offset.left;
$form.clk_y = ev.pageY - offset.top;
} else {
$form.clk_x = ev.pageX - this.offsetLeft;
$form.clk_y = ev.pageY - this.offsetTop;
}
}
setTimeout(function() {
$form.clk = $form.clk_x = $form.clk_y = null;
}, 10);
})
}).submit(function(e) {
jQuery(this).ajaxSubmit(options);
return false;
});
};
jQuery.fn.formToArray = function(semantic) {
var a = [];
if (this.length == 0) return a;
var form = this[0];
var els = semantic ? form.getElementsByTagName('*') : form.elements;
if (!els) return a;
for(var i=0, max=els.length; i < max; i++) {
var el = els[i];
var n = el.name;
if (!n) continue;
if (semantic && form.clk && el.type == "image") {
if(!el.disabled && form.clk == el)
a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
continue;
}
var v = jQuery.fieldValue(el, true);
if (v === null) continue;
if (v.constructor == Array) {
for(var j=0, jmax=v.length; j < jmax; j++)
a.push({name: n, value: v[j]});
}
else
a.push({name: n, value: v});
}
if (!semantic && form.clk) {
var inputs = form.getElementsByTagName("input");
for(var i=0, max=inputs.length; i < max; i++) {
var input = inputs[i];
var n = input.name;
if(n && !input.disabled && input.type == "image" && form.clk == input)
a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
}
}
return a;
};
jQuery.fn.formSerialize = function(semantic) {
return jQuery.param(this.formToArray(semantic));
};
jQuery.fn.fieldSerialize = function(successful) {
var a = [];
this.each(function() {
var n = this.name;
if (!n) return;
var v = jQuery.fieldValue(this, successful);
if (v && v.constructor == Array) {
for (var i=0,max=v.length; i < max; i++)
a.push({name: n, value: v[i]});
}
else if (v !== null && typeof v != 'undefined')
a.push({name: this.name, value: v});
});
return jQuery.param(a);
};
jQuery.fn.fieldValue = function(successful) {
var val=[], name;
for (var i=0, max=this.length; i < max; i++) {
var el = this[i];
var v = jQuery.fieldValue(el, successful);
if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length))
continue;
name = name || el.name;
if (name != el.name)
continue;
v.constructor == Array ? jQuery.merge(val, v) : val.push(v);
}
return val;
};
jQuery.fieldValue = function(el, successful) {
var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
if (typeof successful == 'undefined') successful = true;
if (successful && (!n || el.disabled || t == 'reset' || t == 'button' ||
(t == 'checkbox' || t == 'radio') && !el.checked ||
(t == 'submit' || t == 'image') && el.form && el.form.clk != el ||
tag == 'select' && el.selectedIndex == -1))
return null;
if (tag == 'select') {
var index = el.selectedIndex;
if (index < 0) return null;
var a = [], ops = el.options;
var one = (t == 'select-one');
var max = (one ? index+1 : ops.length);
for(var i=(one ? index : 0); i < max; i++) {
var op = ops[i];
if (op.selected) {
var v = jQuery.browser.msie && !(op.attributes['value'].specified) ? op.text : op.value;
if (one) return v;
a.push(v);
}
}
return a;
}
return el.value;
};
jQuery.fn.clearForm = function() {
return this.each(function() {
jQuery('input,select,textarea', this).clearFields();
});
};
jQuery.fn.clearFields = jQuery.fn.clearInputs = function() {
return this.each(function() {
var t = this.type, tag = this.tagName.toLowerCase();
if (t == 'text' || t == 'password' || tag == 'textarea')
this.value = '';
else if (t == 'checkbox' || t == 'radio')
this.checked = false;
else if (tag == 'select')
this.selectedIndex = -1;
});
};
jQuery.fn.resetForm = function() {
return this.each(function() {
if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType))
this.reset();
});
};