Image uploading initial commit

2 files changed, 1333 insertions, 0 deletions

diff --git a/static/js/ajaxupload.js b/static/js/ajaxupload.js
new file mode 100755
index 0000000..7e51768
--- /dev/null
+++ b/static/js/ajaxupload.js
@@ -0,0 +1,673 @@
+/**
+ * AJAX Upload ( http://valums.com/ajax-upload/ ) 
+ * Copyright (c) Andris Valums
+ * Licensed under the MIT license ( http://valums.com/mit-license/ )
+ * Thanks to Gary Haran, David Mark, Corey Burns and others for contributions 
+ */
+(function () {
+    /* global window */
+    /* jslint browser: true, devel: true, undef: true, nomen: true, bitwise: true, regexp: true, newcap: true, immed: true */
+    
+    /**
+     * Wrapper for FireBug's console.log
+     */
+    function log(){
+        if (typeof(console) != 'undefined' && typeof(console.log) == 'function'){            
+            Array.prototype.unshift.call(arguments, '[Ajax Upload]');
+            console.log( Array.prototype.join.call(arguments, ' '));
+        }
+    } 
+
+    /**
+     * Attaches event to a dom element.
+     * @param {Element} el
+     * @param type event name
+     * @param fn callback This refers to the passed element
+     */
+    function addEvent(el, type, fn){
+        if (el.addEventListener) {
+            el.addEventListener(type, fn, false);
+        } else if (el.attachEvent) {
+            el.attachEvent('on' + type, function(){
+                fn.call(el);
+	        });
+	    } else {
+            throw new Error('not supported or DOM not loaded');
+        }
+    }   
+    
+    /**
+     * Attaches resize event to a window, limiting
+     * number of event fired. Fires only when encounteres
+     * delay of 100 after series of events.
+     * 
+     * Some browsers fire event multiple times when resizing
+     * http://www.quirksmode.org/dom/events/resize.html
+     * 
+     * @param fn callback This refers to the passed element
+     */
+    function addResizeEvent(fn){
+        var timeout;
+               
+	    addEvent(window, 'resize', function(){
+            if (timeout){
+                clearTimeout(timeout);
+            }
+            timeout = setTimeout(fn, 100);                        
+        });
+    }    
+    
+    // Needs more testing, will be rewriten for next version        
+    // getOffset function copied from jQuery lib (http://jquery.com/)
+    if (document.documentElement.getBoundingClientRect){
+        // Get Offset using getBoundingClientRect
+        // http://ejohn.org/blog/getboundingclientrect-is-awesome/
+        var getOffset = function(el){
+            var box = el.getBoundingClientRect();
+            var doc = el.ownerDocument;
+            var body = doc.body;
+            var docElem = doc.documentElement; // for ie 
+            var clientTop = docElem.clientTop || body.clientTop || 0;
+            var clientLeft = docElem.clientLeft || body.clientLeft || 0;
+             
+            // In Internet Explorer 7 getBoundingClientRect property is treated as physical,
+            // while others are logical. Make all logical, like in IE8.	
+            var zoom = 1;            
+            if (body.getBoundingClientRect) {
+                var bound = body.getBoundingClientRect();
+                zoom = (bound.right - bound.left) / body.clientWidth;
+            }
+            
+            if (zoom > 1) {
+                clientTop = 0;
+                clientLeft = 0;
+            }
+            
+            var top = box.top / zoom + (window.pageYOffset || docElem && docElem.scrollTop / zoom || body.scrollTop / zoom) - clientTop, left = box.left / zoom + (window.pageXOffset || docElem && docElem.scrollLeft / zoom || body.scrollLeft / zoom) - clientLeft;
+            
+            return {
+                top: top,
+                left: left
+            };
+        };        
+    } else {
+        // Get offset adding all offsets 
+        var getOffset = function(el){
+            var top = 0, left = 0;
+            do {
+                top += el.offsetTop || 0;
+                left += el.offsetLeft || 0;
+                el = el.offsetParent;
+            } while (el);
+            
+            return {
+                left: left,
+                top: top
+            };
+        };
+    }
+    
+    /**
+     * Returns left, top, right and bottom properties describing the border-box,
+     * in pixels, with the top-left relative to the body
+     * @param {Element} el
+     * @return {Object} Contains left, top, right,bottom
+     */
+    function getBox(el){
+        var left, right, top, bottom;
+        var offset = getOffset(el);
+        left = offset.left;
+        top = offset.top;
+        
+        right = left + el.offsetWidth;
+        bottom = top + el.offsetHeight;
+        
+        return {
+            left: left,
+            right: right,
+            top: top,
+            bottom: bottom
+        };
+    }
+    
+    /**
+     * Helper that takes object literal
+     * and add all properties to element.style
+     * @param {Element} el
+     * @param {Object} styles
+     */
+    function addStyles(el, styles){
+        for (var name in styles) {
+            if (styles.hasOwnProperty(name)) {
+                el.style[name] = styles[name];
+            }
+        }
+    }
+        
+    /**
+     * Function places an absolutely positioned
+     * element on top of the specified element
+     * copying position and dimentions.
+     * @param {Element} from
+     * @param {Element} to
+     */    
+    function copyLayout(from, to){
+	    var box = getBox(from);
+        
+        addStyles(to, {
+	        position: 'absolute',                    
+	        left : box.left + 'px',
+	        top : box.top + 'px',
+	        width : from.offsetWidth + 'px',
+	        height : from.offsetHeight + 'px'
+	    });        
+    }
+
+    /**
+    * Creates and returns element from html chunk
+    * Uses innerHTML to create an element
+    */
+    var toElement = (function(){
+        var div = document.createElement('div');
+        return function(html){
+            div.innerHTML = html;
+            var el = div.firstChild;
+            return div.removeChild(el);
+        };
+    })();
+            
+    /**
+     * Function generates unique id
+     * @return unique id 
+     */
+    var getUID = (function(){
+        var id = 0;
+        return function(){
+            return 'ValumsAjaxUpload' + id++;
+        };
+    })();        
+ 
+    /**
+     * Get file name from path
+     * @param {String} file path to file
+     * @return filename
+     */  
+    function fileFromPath(file){
+        return file.replace(/.*(\/|\\)/, "");
+    }
+    
+    /**
+     * Get file extension lowercase
+     * @param {String} file name
+     * @return file extenstion
+     */    
+    function getExt(file){
+        return (-1 !== file.indexOf('.')) ? file.replace(/.*[.]/, '') : '';
+    }
+
+    function hasClass(el, name){        
+        var re = new RegExp('\\b' + name + '\\b');        
+        return re.test(el.className);
+    }    
+    function addClass(el, name){
+        if ( ! hasClass(el, name)){   
+            el.className += ' ' + name;
+        }
+    }    
+    function removeClass(el, name){
+        var re = new RegExp('\\b' + name + '\\b');                
+        el.className = el.className.replace(re, '');        
+    }
+    
+    function removeNode(el){
+        el.parentNode.removeChild(el);
+    }
+
+    /**
+     * Easy styling and uploading
+     * @constructor
+     * @param button An element you want convert to 
+     * upload button. Tested dimentions up to 500x500px
+     * @param {Object} options See defaults below.
+     */
+    window.AjaxUpload = function(button, options){
+        this._settings = {
+            // Location of the server-side upload script
+            action: 'upload.php',
+            // File upload name
+            name: 'userfile',
+            // Additional data to send
+            data: {},
+            // Submit file as soon as it's selected
+            autoSubmit: true,
+            // The type of data that you're expecting back from the server.
+            // html and xml are detected automatically.
+            // Only useful when you are using json data as a response.
+            // Set to "json" in that case. 
+            responseType: false,
+            // Class applied to button when mouse is hovered
+            hoverClass: 'hover',
+            // Class applied to button when AU is disabled
+            disabledClass: 'disabled',            
+            // When user selects a file, useful with autoSubmit disabled
+            // You can return false to cancel upload			
+            onChange: function(file, extension){
+            },
+            // Callback to fire before file is uploaded
+            // You can return false to cancel upload
+            onSubmit: function(file, extension){
+            },
+            // Fired when file upload is completed
+            // WARNING! DO NOT USE "FALSE" STRING AS A RESPONSE!
+            onComplete: function(file, response){
+            }
+        };
+                        
+        // Merge the users options with our defaults
+        for (var i in options) {
+            if (options.hasOwnProperty(i)){
+                this._settings[i] = options[i];
+            }
+        }
+                
+        // button isn't necessary a dom element
+        if (button.jquery){
+            // jQuery object was passed
+            button = button[0];
+        } else if (typeof button == "string") {
+            if (/^#.*/.test(button)){
+                // If jQuery user passes #elementId don't break it					
+                button = button.slice(1);                
+            }
+            
+            button = document.getElementById(button);
+        }
+        
+        if ( ! button || button.nodeType !== 1){
+            throw new Error("Please make sure that you're passing a valid element"); 
+        }
+                
+        if ( button.nodeName.toUpperCase() == 'A'){
+            // disable link                       
+            addEvent(button, 'click', function(e){
+                if (e && e.preventDefault){
+                    e.preventDefault();
+                } else if (window.event){
+                    window.event.returnValue = false;
+                }
+            });
+        }
+                    
+        // DOM element
+        this._button = button;        
+        // DOM element                 
+        this._input = null;
+        // If disabled clicking on button won't do anything
+        this._disabled = false;
+        
+        // if the button was disabled before refresh if will remain
+        // disabled in FireFox, let's fix it
+        this.enable();        
+        
+        this._rerouteClicks();
+    };
+    
+    // assigning methods to our class
+    AjaxUpload.prototype = {
+        setData: function(data){
+            this._settings.data = data;
+        },
+        disable: function(){            
+            addClass(this._button, this._settings.disabledClass);
+            this._disabled = true;
+            
+            var nodeName = this._button.nodeName.toUpperCase();            
+            if (nodeName == 'INPUT' || nodeName == 'BUTTON'){
+                this._button.setAttribute('disabled', 'disabled');
+            }            
+            
+            // hide input
+            if (this._input){
+                // We use visibility instead of display to fix problem with Safari 4
+                // The problem is that the value of input doesn't change if it 
+                // has display none when user selects a file           
+                this._input.parentNode.style.visibility = 'hidden';
+            }
+        },
+        enable: function(){
+            removeClass(this._button, this._settings.disabledClass);
+            this._button.removeAttribute('disabled');
+            this._disabled = false;
+            
+        },
+        /**
+         * Creates invisible file input 
+         * that will hover above the button
+         * <div><input type='file' /></div>
+         */
+        _createInput: function(){ 
+            var self = this;
+                        
+            var input = document.createElement("input");
+            input.setAttribute('type', 'file');
+            input.setAttribute('name', this._settings.name);
+            
+            addStyles(input, {
+                'position' : 'absolute',
+                // in Opera only 'browse' button
+                // is clickable and it is located at
+                // the right side of the input
+                'right' : 0,
+                'margin' : 0,
+                'padding' : 0,
+                'fontSize' : '480px',                
+                'cursor' : 'pointer'
+            });            
+
+            var div = document.createElement("div");                        
+            addStyles(div, {
+                'display' : 'block',
+                'position' : 'absolute',
+                'overflow' : 'hidden',
+                'margin' : 0,
+                'padding' : 0,                
+                'opacity' : 0,
+                // Make sure browse button is in the right side
+                // in Internet Explorer
+                'direction' : 'ltr',
+                //Max zIndex supported by Opera 9.0-9.2
+                'zIndex': 2147483583
+            });
+            
+            // Make sure that element opacity exists.
+            // Otherwise use IE filter            
+            if ( div.style.opacity !== "0") {
+                if (typeof(div.filters) == 'undefined'){
+                    throw new Error('Opacity not supported by the browser');
+                }
+                div.style.filter = "alpha(opacity=0)";
+            }            
+            
+            addEvent(input, 'change', function(){
+                 
+                if ( ! input || input.value === ''){                
+                    return;                
+                }
+                            
+                // Get filename from input, required                
+                // as some browsers have path instead of it          
+                var file = fileFromPath(input.value);
+                                
+                if (false === self._settings.onChange.call(self, file, getExt(file))){
+                    self._clearInput();                
+                    return;
+                }
+                
+                // Submit form when value is changed
+                if (self._settings.autoSubmit) {
+                    self.submit();
+                }
+            });            
+
+            addEvent(input, 'mouseover', function(){
+                addClass(self._button, self._settings.hoverClass);
+            });
+            
+            addEvent(input, 'mouseout', function(){
+                removeClass(self._button, self._settings.hoverClass);
+                
+                // We use visibility instead of display to fix problem with Safari 4
+                // The problem is that the value of input doesn't change if it 
+                // has display none when user selects a file           
+                input.parentNode.style.visibility = 'hidden';
+
+            });   
+                        
+	        div.appendChild(input);
+            document.body.appendChild(div);
+              
+            this._input = input;
+        },
+        _clearInput : function(){
+            if (!this._input){
+                return;
+            }            
+                             
+            // this._input.value = ''; Doesn't work in IE6                               
+            removeNode(this._input.parentNode);
+            this._input = null;                                                                   
+            this._createInput();
+            
+            removeClass(this._button, this._settings.hoverClass);
+        },
+        /**
+         * Function makes sure that when user clicks upload button,
+         * the this._input is clicked instead
+         */
+        _rerouteClicks: function(){
+            var self = this;
+            
+            // IE will later display 'access denied' error
+            // if you use using self._input.click()
+            // other browsers just ignore click()
+
+            addEvent(self._button, 'mouseover', function(){
+                if (self._disabled){
+                    return;
+                }
+                                
+                if ( ! self._input){
+	                self._createInput();
+                }
+                
+                var div = self._input.parentNode;                            
+                copyLayout(self._button, div);
+                div.style.visibility = 'visible';
+                                
+            });
+            
+            
+            // commented because we now hide input on mouseleave
+            /**
+             * When the window is resized the elements 
+             * can be misaligned if button position depends
+             * on window size
+             */
+            //addResizeEvent(function(){
+            //    if (self._input){
+            //        copyLayout(self._button, self._input.parentNode);
+            //    }
+            //});            
+                                         
+        },
+        /**
+         * Creates iframe with unique name
+         * @return {Element} iframe
+         */
+        _createIframe: function(){
+            // We can't use getTime, because it sometimes return
+            // same value in safari :(
+            var id = getUID();            
+             
+            // We can't use following code as the name attribute
+            // won't be properly registered in IE6, and new window
+            // on form submit will open
+            // var iframe = document.createElement('iframe');
+            // iframe.setAttribute('name', id);                        
+ 
+            var iframe = toElement('<iframe src="javascript:false;" name="' + id + '" />');
+            // src="javascript:false; was added
+            // because it possibly removes ie6 prompt 
+            // "This page contains both secure and nonsecure items"
+            // Anyway, it doesn't do any harm.            
+            iframe.setAttribute('id', id);
+            
+            iframe.style.display = 'none';
+            document.body.appendChild(iframe);
+            
+            return iframe;
+        },
+        /**
+         * Creates form, that will be submitted to iframe
+         * @param {Element} iframe Where to submit
+         * @return {Element} form
+         */
+        _createForm: function(iframe){
+            var settings = this._settings;
+                        
+            // We can't use the following code in IE6
+            // var form = document.createElement('form');
+            // form.setAttribute('method', 'post');
+            // form.setAttribute('enctype', 'multipart/form-data');
+            // Because in this case file won't be attached to request                    
+            var form = toElement('<form method="post" enctype="multipart/form-data"></form>');
+                        
+            form.setAttribute('action', settings.action);
+            form.setAttribute('target', iframe.name);                                   
+            form.style.display = 'none';
+            document.body.appendChild(form);
+            
+            // Create hidden input element for each data key
+            for (var prop in settings.data) {
+                if (settings.data.hasOwnProperty(prop)){
+                    var el = document.createElement("input");
+                    el.setAttribute('type', 'hidden');
+                    el.setAttribute('name', prop);
+                    el.setAttribute('value', settings.data[prop]);
+                    form.appendChild(el);
+                }
+            }
+            return form;
+        },
+        /**
+         * Gets response from iframe and fires onComplete event when ready
+         * @param iframe
+         * @param file Filename to use in onComplete callback 
+         */
+        _getResponse : function(iframe, file){            
+            // getting response
+            var toDeleteFlag = false, self = this, settings = this._settings;   
+               
+            addEvent(iframe, 'load', function(){                
+                
+                if (// For Safari 
+                    iframe.src == "javascript:'%3Chtml%3E%3C/html%3E';" ||
+                    // For FF, IE
+                    iframe.src == "javascript:'<html></html>';"){                                                                        
+                        // First time around, do not delete.
+                        // We reload to blank page, so that reloading main page
+                        // does not re-submit the post.
+                        
+                        if (toDeleteFlag) {
+                            // Fix busy state in FF3
+                            setTimeout(function(){
+                                removeNode(iframe);
+                            }, 0);
+                        }
+                                                
+                        return;
+                }
+                
+                var doc = iframe.contentDocument ? iframe.contentDocument : window.frames[iframe.id].document;
+                
+                // fixing Opera 9.26,10.00
+                if (doc.readyState && doc.readyState != 'complete') {
+                   // Opera fires load event multiple times
+                   // Even when the DOM is not ready yet
+                   // this fix should not affect other browsers
+                   return;
+                }
+                
+                // fixing Opera 9.64
+                if (doc.body && doc.body.innerHTML == "false") {
+                    // In Opera 9.64 event was fired second time
+                    // when body.innerHTML changed from false 
+                    // to server response approx. after 1 sec
+                    return;
+                }
+                
+                var response;
+                
+                if (doc.XMLDocument) {
+                    // response is a xml document Internet Explorer property
+                    response = doc.XMLDocument;
+                } else if (doc.body){
+                    // response is html document or plain text
+                    response = doc.body.innerHTML;
+                    
+                    if (settings.responseType && settings.responseType.toLowerCase() == 'json') {
+                        // If the document was sent as 'application/javascript' or
+                        // 'text/javascript', then the browser wraps the text in a <pre>
+                        // tag and performs html encoding on the contents.  In this case,
+                        // we need to pull the original text content from the text node's
+                        // nodeValue property to retrieve the unmangled content.
+                        // Note that IE6 only understands text/html
+                        if (doc.body.firstChild && doc.body.firstChild.nodeName.toUpperCase() == 'PRE') {
+                            response = doc.body.firstChild.firstChild.nodeValue;
+                        }
+                        
+                        if (response) {
+                            response = eval("(" + response + ")");
+                        } else {
+                            response = {};
+                        }
+                    }
+                } else {
+                    // response is a xml document
+                    response = doc;
+                }
+                
+                settings.onComplete.call(self, file, response);
+                
+                // Reload blank page, so that reloading main page
+                // does not re-submit the post. Also, remember to
+                // delete the frame
+                toDeleteFlag = true;
+                
+                // Fix IE mixed content issue
+                iframe.src = "javascript:'<html></html>';";
+            });            
+        },        
+        /**
+         * Upload file contained in this._input
+         */
+        submit: function(){                        
+            var self = this, settings = this._settings;
+            
+            if ( ! this._input || this._input.value === ''){                
+                return;                
+            }
+                                    
+            var file = fileFromPath(this._input.value);
+            
+            // user returned false to cancel upload
+            if (false === settings.onSubmit.call(this, file, getExt(file))){
+                this._clearInput();                
+                return;
+            }
+            
+            // sending request    
+            var iframe = this._createIframe();
+            var form = this._createForm(iframe);
+            
+            // assuming following structure
+            // div -> input type='file'
+            removeNode(this._input.parentNode);            
+            removeClass(self._button, self._settings.hoverClass);
+                        
+            form.appendChild(this._input);
+                        
+            form.submit();
+
+            // request set, clean up                
+            removeNode(form); form = null;                          
+            removeNode(this._input); this._input = null;
+            
+            // Get response from iframe and fire onComplete event when ready
+            this._getResponse(iframe, file);            
+
+            // get ready for next request            
+            this._createInput();
+        }
+    };
+})(); 
diff --git a/static/js/jquery.form.js b/static/js/jquery.form.js
new file mode 100755
index 0000000..dde3942
--- /dev/null
+++ b/static/js/jquery.form.js
@@ -0,0 +1,660 @@
+/*
+ * jQuery Form Plugin
+ * version: 2.36 (07-NOV-2009)
+ * @requires jQuery v1.2.6 or later
+ *
+ * Examples and documentation 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
+ */
+;(function($) {
+
+/*
+	Usage Note:
+	-----------
+	Do not use both ajaxSubmit and ajaxForm on the same form.  These
+	functions are intended to be exclusive.  Use ajaxSubmit if you want
+	to bind your own submit handler to the form.  For example,
+
+	$(document).ready(function() {
+		$('#myForm').bind('submit', function() {
+			$(this).ajaxSubmit({
+				target: '#output'
+			});
+			return false; // <-- important!
+		});
+	});
+
+	Use ajaxForm when you want the plugin to manage all the event binding
+	for you.  For example,
+
+	$(document).ready(function() {
+		$('#myForm').ajaxForm({
+			target: '#output'
+		});
+	});
+
+	When using ajaxForm, the ajaxSubmit function will be invoked for you
+	at the appropriate time.
+*/
+
+/**
+ * ajaxSubmit() provides a mechanism for immediately submitting
+ * an HTML form using AJAX.
+ */
+$.fn.ajaxSubmit = function(options) {
+	// fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
+	if (!this.length) {
+		log('ajaxSubmit: skipping submit process - no element selected');
+		return this;
+	}
+
+	if (typeof options == 'function')
+		options = { success: options };
+
+	var url = $.trim(this.attr('action'));
+	if (url) {
+		// clean url (don't include hash vaue)
+		url = (url.match(/^([^#]+)/)||[])[1];
+   	}
+   	url = url || window.location.href || '';
+
+	options = $.extend({
+		url:  url,
+		type: this.attr('method') || 'GET',
+		iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank'
+	}, options || {});
+
+	// hook for manipulating the form data before it is extracted;
+	// convenient for use with rich editors like tinyMCE or FCKEditor
+	var veto = {};
+	this.trigger('form-pre-serialize', [this, options, veto]);
+	if (veto.veto) {
+		log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
+		return this;
+	}
+
+	// provide opportunity to alter form data before it is serialized
+	if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
+		log('ajaxSubmit: submit aborted via beforeSerialize callback');
+		return this;
+	}
+
+	var a = this.formToArray(options.semantic);
+	if (options.data) {
+		options.extraData = options.data;
+		for (var n in options.data) {
+		  if(options.data[n] instanceof Array) {
+			for (var k in options.data[n])
+			  a.push( { name: n, value: options.data[n][k] } );
+		  }
+		  else
+			 a.push( { name: n, value: options.data[n] } );
+		}
+	}
+
+	// give pre-submit callback an opportunity to abort the submit
+	if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
+		log('ajaxSubmit: submit aborted via beforeSubmit callback');
+		return this;
+	}
+
+	// fire vetoable 'validate' event
+	this.trigger('form-submit-validate', [a, this, options, veto]);
+	if (veto.veto) {
+		log('ajaxSubmit: submit vetoed via form-submit-validate trigger');
+		return this;
+	}
+
+	var q = $.param(a);
+
+	if (options.type.toUpperCase() == 'GET') {
+		options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
+		options.data = null;  // data is null for 'get'
+	}
+	else
+		options.data = q; // data is the query string for 'post'
+
+	var $form = this, callbacks = [];
+	if (options.resetForm) callbacks.push(function() { $form.resetForm(); });
+	if (options.clearForm) callbacks.push(function() { $form.clearForm(); });
+
+	// perform a load on the target only if dataType is not provided
+	if (!options.dataType && options.target) {
+		var oldSuccess = options.success || function(){};
+		callbacks.push(function(data) {
+			$(options.target).html(data).each(oldSuccess, arguments);
+		});
+	}
+	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].apply(options, [data, status, $form]);
+	};
+
+	// are there files to upload?
+	var files = $('input:file', this).fieldValue();
+	var found = false;
+	for (var j=0; j < files.length; j++)
+		if (files[j])
+			found = true;
+
+	var multipart = false;
+//	var mp = 'multipart/form-data';
+//	multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);
+
+	// options.iframe allows user to force iframe mode
+	// 06-NOV-09: now defaulting to iframe mode if file input is detected
+   if ((files.length && options.iframe !== false) || options.iframe || found || multipart) {
+	   // hack to fix Safari hang (thanks to Tim Molendijk for this)
+	   // see:  http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
+	   if (options.closeKeepAlive)
+		   $.get(options.closeKeepAlive, fileUpload);
+	   else
+		   fileUpload();
+	   }
+   else
+	   $.ajax(options);
+
+	// fire 'notify' event
+	this.trigger('form-submit-notify', [this, options]);
+	return this;
+
+
+	// private function for handling file uploads (hat tip to YAHOO!)
+	function fileUpload() {
+		var form = $form[0];
+
+		if ($(':input[name=submit]', form).length) {
+			alert('Error: Form elements must not be named "submit".');
+			return;
+		}
+
+		var opts = $.extend({}, $.ajaxSettings, options);
+		var s = $.extend(true, {}, $.extend(true, {}, $.ajaxSettings), opts);
+
+		var id = 'jqFormIO' + (new Date().getTime());
+		var $io = $('<iframe id="' + id + '" name="' + id + '" src="'+ opts.iframeSrc +'" />');
+		var io = $io[0];
+
+		$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
+
+		var xhr = { // mock object
+			aborted: 0,
+			responseText: null,
+			responseXML: null,
+			status: 0,
+			statusText: 'n/a',
+			getAllResponseHeaders: function() {},
+			getResponseHeader: function() {},
+			setRequestHeader: function() {},
+			abort: function() {
+				this.aborted = 1;
+				$io.attr('src', opts.iframeSrc); // abort op in progress
+			}
+		};
+
+		var g = opts.global;
+		// trigger ajax global events so that activity/block indicators work like normal
+		if (g && ! $.active++) $.event.trigger("ajaxStart");
+		if (g) $.event.trigger("ajaxSend", [xhr, opts]);
+
+		if (s.beforeSend && s.beforeSend(xhr, s) === false) {
+			s.global && $.active--;
+			return;
+		}
+		if (xhr.aborted)
+			return;
+
+		var cbInvoked = 0;
+		var timedOut = 0;
+
+		// add submitting element to data if we know it
+		var sub = form.clk;
+		if (sub) {
+			var n = sub.name;
+			if (n && !sub.disabled) {
+				options.extraData = options.extraData || {};
+				options.extraData[n] = sub.value;
+				if (sub.type == "image") {
+					options.extraData[name+'.x'] = form.clk_x;
+					options.extraData[name+'.y'] = form.clk_y;
+				}
+			}
+		}
+
+		// take a breath so that pending repaints get some cpu time before the upload starts
+		setTimeout(function() {
+			// make sure form attrs are set
+			var t = $form.attr('target'), a = $form.attr('action');
+
+			// update form attrs in IE friendly way
+			form.setAttribute('target',id);
+			if (form.getAttribute('method') != 'POST')
+				form.setAttribute('method', 'POST');
+			if (form.getAttribute('action') != opts.url)
+				form.setAttribute('action', opts.url);
+
+			// ie borks in some cases when setting encoding
+			if (! options.skipEncodingOverride) {
+				$form.attr({
+					encoding: 'multipart/form-data',
+					enctype:  'multipart/form-data'
+				});
+			}
+
+			// support timout
+			if (opts.timeout)
+				setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
+
+			// add "extra" data to form if provided in options
+			var extraInputs = [];
+			try {
+				if (options.extraData)
+					for (var n in options.extraData)
+						extraInputs.push(
+							$('<input type="hidden" name="'+n+'" value="'+options.extraData[n]+'" />')
+								.appendTo(form)[0]);
+
+				// add iframe to doc and submit the form
+				$io.appendTo('body');
+				io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
+				form.submit();
+			}
+			finally {
+				// reset attrs and remove "extra" input elements
+				form.setAttribute('action',a);
+				t ? form.setAttribute('target', t) : $form.removeAttr('target');
+				$(extraInputs).remove();
+			}
+		}, 10);
+
+		var domCheckCount = 50;
+
+		function cb() {
+			if (cbInvoked++) return;
+
+			io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);
+
+			var ok = true;
+			try {
+				if (timedOut) throw 'timeout';
+				// extract the server response from the iframe
+				var data, doc;
+
+				doc = io.contentWindow ? io.contentWindow.document : io.contentDocument ? io.contentDocument : io.document;
+				
+				var isXml = opts.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);
+				log('isXml='+isXml);
+				if (!isXml && (doc.body == null || doc.body.innerHTML == '')) {
+				 	if (--domCheckCount) {
+						// in some browsers (Opera) the iframe DOM is not always traversable when
+						// the onload callback fires, so we loop a bit to accommodate
+						cbInvoked = 0;
+						setTimeout(cb, 100);
+						return;
+					}
+					log('Could not access iframe DOM after 50 tries.');
+					return;
+				}
+
+				xhr.responseText = doc.body ? doc.body.innerHTML : null;
+				xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
+				xhr.getResponseHeader = function(header){
+					var headers = {'content-type': opts.dataType};
+					return headers[header];
+				};
+
+				if (opts.dataType == 'json' || opts.dataType == 'script') {
+					// see if user embedded response in textarea
+					var ta = doc.getElementsByTagName('textarea')[0];
+					if (ta)
+						xhr.responseText = ta.value;
+					else {
+						// account for browsers injecting pre around json response
+						var pre = doc.getElementsByTagName('pre')[0];
+						if (pre)
+							xhr.responseText = pre.innerHTML;
+					}			  
+				}
+				else if (opts.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
+					xhr.responseXML = toXml(xhr.responseText);
+				}
+				data = $.httpData(xhr, opts.dataType);
+			}
+			catch(e){
+				ok = false;
+				$.handleError(opts, xhr, 'error', e);
+			}
+
+			// ordering of these callbacks/triggers is odd, but that's how $.ajax does it
+			if (ok) {
+				opts.success(data, 'success');
+				if (g) $.event.trigger("ajaxSuccess", [xhr, opts]);
+			}
+			if (g) $.event.trigger("ajaxComplete", [xhr, opts]);
+			if (g && ! --$.active) $.event.trigger("ajaxStop");
+			if (opts.complete) opts.complete(xhr, ok ? 'success' : 'error');
+
+			// clean up
+			setTimeout(function() {
+				$io.remove();
+				xhr.responseXML = null;
+			}, 100);
+		};
+
+		function toXml(s, doc) {
+			if (window.ActiveXObject) {
+				doc = new ActiveXObject('Microsoft.XMLDOM');
+				doc.async = 'false';
+				doc.loadXML(s);
+			}
+			else
+				doc = (new DOMParser()).parseFromString(s, 'text/xml');
+			return (doc && doc.documentElement && doc.documentElement.tagName != 'parsererror') ? doc : null;
+		};
+	};
+};
+
+/**
+ * ajaxForm() provides a mechanism for fully automating form submission.
+ *
+ * The advantages of using this method instead of ajaxSubmit() are:
+ *
+ * 1: This method will include coordinates for <input type="image" /> elements (if the element
+ *	is used to submit the form).
+ * 2. This method will include the submit element's name/value data (for the element that was
+ *	used to submit the form).
+ * 3. This method binds the submit() method to the form for you.
+ *
+ * The options argument for ajaxForm works exactly as it does for ajaxSubmit.  ajaxForm merely
+ * passes the options argument along after properly binding events for submit elements and
+ * the form itself.
+ */
+$.fn.ajaxForm = function(options) {
+	return this.ajaxFormUnbind().bind('submit.form-plugin', function() {
+		$(this).ajaxSubmit(options);
+		return false;
+	}).bind('click.form-plugin', function(e) {
+		var target = e.target;
+		var $el = $(target);
+		if (!($el.is(":submit,input:image"))) {
+			// is this a child element of the submit el?  (ex: a span within a button)
+			var t = $el.closest(':submit');
+			if (t.length == 0)
+				return;
+			target = t[0];
+		}
+		var form = this;
+		form.clk = target;
+		if (target.type == 'image') {
+			if (e.offsetX != undefined) {
+				form.clk_x = e.offsetX;
+				form.clk_y = e.offsetY;
+			} else if (typeof $.fn.offset == 'function') { // try to use dimensions plugin
+				var offset = $el.offset();
+				form.clk_x = e.pageX - offset.left;
+				form.clk_y = e.pageY - offset.top;
+			} else {
+				form.clk_x = e.pageX - target.offsetLeft;
+				form.clk_y = e.pageY - target.offsetTop;
+			}
+		}
+		// clear form vars
+		setTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);
+	});
+};
+
+// ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
+$.fn.ajaxFormUnbind = function() {
+	return this.unbind('submit.form-plugin click.form-plugin');
+};
+
+/**
+ * formToArray() gathers form element data into an array of objects that can
+ * be passed to any of the following ajax functions: $.get, $.post, or load.
+ * Each object in the array has both a 'name' and 'value' property.  An example of
+ * an array for a simple login form might be:
+ *
+ * [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]
+ *
+ * It is this array that is passed to pre-submit callback functions provided to the
+ * ajaxSubmit() and ajaxForm() methods.
+ */
+$.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") {
+			// handle image inputs on the fly when semantic == true
+			if(!el.disabled && form.clk == el) {
+				a.push({name: n, value: $(el).val()});
+				a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
+			}
+			continue;
+		}
+
+		var v = $.fieldValue(el, true);
+		if (v && v.constructor == Array) {
+			for(var j=0, jmax=v.length; j < jmax; j++)
+				a.push({name: n, value: v[j]});
+		}
+		else if (v !== null && typeof v != 'undefined')
+			a.push({name: n, value: v});
+	}
+
+	if (!semantic && form.clk) {
+		// input type=='image' are not found in elements array! handle it here
+		var $input = $(form.clk), input = $input[0], n = input.name;
+		if (n && !input.disabled && input.type == 'image') {
+			a.push({name: n, value: $input.val()});
+			a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
+		}
+	}
+	return a;
+};
+
+/**
+ * Serializes form data into a 'submittable' string. This method will return a string
+ * in the format: name1=value1&amp;name2=value2
+ */
+$.fn.formSerialize = function(semantic) {
+	//hand off to jQuery.param for proper encoding
+	return $.param(this.formToArray(semantic));
+};
+
+/**
+ * Serializes all field elements in the jQuery object into a query string.
+ * This method will return a string in the format: name1=value1&amp;name2=value2
+ */
+$.fn.fieldSerialize = function(successful) {
+	var a = [];
+	this.each(function() {
+		var n = this.name;
+		if (!n) return;
+		var v = $.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});
+	});
+	//hand off to jQuery.param for proper encoding
+	return $.param(a);
+};
+
+/**
+ * Returns the value(s) of the element in the matched set.  For example, consider the following form:
+ *
+ *  <form><fieldset>
+ *	  <input name="A" type="text" />
+ *	  <input name="A" type="text" />
+ *	  <input name="B" type="checkbox" value="B1" />
+ *	  <input name="B" type="checkbox" value="B2"/>
+ *	  <input name="C" type="radio" value="C1" />
+ *	  <input name="C" type="radio" value="C2" />
+ *  </fieldset></form>
+ *
+ *  var v = $(':text').fieldValue();
+ *  // if no values are entered into the text inputs
+ *  v == ['','']
+ *  // if values entered into the text inputs are 'foo' and 'bar'
+ *  v == ['foo','bar']
+ *
+ *  var v = $(':checkbox').fieldValue();
+ *  // if neither checkbox is checked
+ *  v === undefined
+ *  // if both checkboxes are checked
+ *  v == ['B1', 'B2']
+ *
+ *  var v = $(':radio').fieldValue();
+ *  // if neither radio is checked
+ *  v === undefined
+ *  // if first radio is checked
+ *  v == ['C1']
+ *
+ * The successful argument controls whether or not the field element must be 'successful'
+ * (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
+ * The default value of the successful argument is true.  If this value is false the value(s)
+ * for each element is returned.
+ *
+ * Note: This method *always* returns an array.  If no valid value can be determined the
+ *	   array will be empty, otherwise it will contain one or more values.
+ */
+$.fn.fieldValue = function(successful) {
+	for (var val=[], i=0, max=this.length; i < max; i++) {
+		var el = this[i];
+		var v = $.fieldValue(el, successful);
+		if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length))
+			continue;
+		v.constructor == Array ? $.merge(val, v) : val.push(v);
+	}
+	return val;
+};
+
+/**
+ * Returns the value of the field element.
+ */
+$.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 = op.value;
+				if (!v) // extra pain for IE...
+					v = (op.attributes && op.attributes['value'] && !(op.attributes['value'].specified)) ? op.text : op.value;
+				if (one) return v;
+				a.push(v);
+			}
+		}
+		return a;
+	}
+	return el.value;
+};
+
+/**
+ * Clears the form data.  Takes the following actions on the form's input fields:
+ *  - input text fields will have their 'value' property set to the empty string
+ *  - select elements will have their 'selectedIndex' property set to -1
+ *  - checkbox and radio inputs will have their 'checked' property set to false
+ *  - inputs of type submit, button, reset, and hidden will *not* be effected
+ *  - button elements will *not* be effected
+ */
+$.fn.clearForm = function() {
+	return this.each(function() {
+		$('input,select,textarea', this).clearFields();
+	});
+};
+
+/**
+ * Clears the selected form elements.
+ */
+$.fn.clearFields = $.fn.clearInputs = function() {
+	return this.each(function() {
+		var t = this.type, tag = this.tagName.toLowerCase();
+		if (t == 'text' || t == 'password' || tag == 'textarea')
+			this.value = '';
+		else if (t == 'checkbox' || t == 'radio')
+			this.checked = false;
+		else if (tag == 'select')
+			this.selectedIndex = -1;
+	});
+};
+
+/**
+ * Resets the form data.  Causes all form elements to be reset to their original value.
+ */
+$.fn.resetForm = function() {
+	return this.each(function() {
+		// guard against an input with the name of 'reset'
+		// note that IE reports the reset function as an 'object'
+		if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType))
+			this.reset();
+	});
+};
+
+/**
+ * Enables or disables any matching elements.
+ */
+$.fn.enable = function(b) {
+	if (b == undefined) b = true;
+	return this.each(function() {
+		this.disabled = !b;
+	});
+};
+
+/**
+ * Checks/unchecks any matching checkboxes or radio buttons and
+ * selects/deselects and matching option elements.
+ */
+$.fn.selected = function(select) {
+	if (select == undefined) select = true;
+	return this.each(function() {
+		var t = this.type;
+		if (t == 'checkbox' || t == 'radio')
+			this.checked = select;
+		else if (this.tagName.toLowerCase() == 'option') {
+			var $sel = $(this).parent('select');
+			if (select && $sel[0] && $sel[0].type == 'select-one') {
+				// deselect all other options
+				$sel.find('option').selected(false);
+			}
+			this.selected = select;
+		}
+	});
+};
+
+// helper fn for console logging
+// set $.fn.ajaxSubmit.debug to true to enable debug logging
+function log() {
+	if ($.fn.ajaxSubmit.debug && window.console && window.console.log)
+		window.console.log('[jquery.form] ' + Array.prototype.join.call(arguments,''));
+};
+
+})(jQuery);