/*!
 * jQuery Form Plugin
 * version: 2.43 (12-MAR-2010)
 * @requires jQuery v1.3.2 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) {
			var fn = options.replaceTarget ? 'replaceWith' : 'html';
			$(options.target)[fn](data).each(oldSuccess, arguments);
		});
	}
	else if (options.success)
		callbacks.push(options.success);

	options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
		for (var i=0, max=callbacks.length; i < max; i++)
			callbacks[i].apply(options, [data, status, xhr || $form, $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 +'" onload="(jQuery(this).data(\'form-plugin-onload\'))()" />');
		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 = false;
		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) {
				opts.extraData = opts.extraData || {};
				opts.extraData[n] = sub.value;
				if (sub.type == "image") {
					opts.extraData[n+'.x'] = form.clk_x;
					opts.extraData[n+'.y'] = form.clk_y;
				}
			}
		}

		// take a breath so that pending repaints get some cpu time before the upload starts
		function doSubmit() {
			// 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 (! opts.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 (opts.extraData)
					for (var n in opts.extraData)
						extraInputs.push(
							$('<input type="hidden" name="'+n+'" value="'+opts.extraData[n]+'" />')
								.appendTo(form)[0]);

				// add iframe to doc and submit the form
				$io.appendTo('body');
				$io.data('form-plugin-onload', cb);
				form.submit();
			}
			finally {
				// reset attrs and remove "extra" input elements
				form.setAttribute('action',a);
				t ? form.setAttribute('target', t) : $form.removeAttr('target');
				$(extraInputs).remove();
			}
		};

		if (opts.forceSync)
			doSubmit();
		else
			setTimeout(doSubmit, 10); // this lets dom updates render
	
		var domCheckCount = 100;

		function cb() {
			if (cbInvoked) 
				return;

			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
				 		log('requeing onLoad callback, DOM not available');
						setTimeout(cb, 250);
						return;
					}
					log('Could not access iframe DOM after 100 tries.');
					return;
				}

				log('response detected');
				cbInvoked = true;
				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){
				log('error caught:',e);
				ok = false;
				xhr.error = e;
				$.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.removeData('form-plugin-onload');
				$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(e) {
		e.preventDefault();
		$(this).ajaxSubmit(options);
	}).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) {
		var msg = '[jquery.form] ' + Array.prototype.join.call(arguments,'');
		if (window.console && window.console.log)
			window.console.log(msg);
		else if (window.opera && window.opera.postError)
			window.opera.postError(msg);
	}
};

})(jQuery);


/*!
 * jQuery blockUI plugin
 * Version 2.31 (06-JAN-2010)
 * @requires jQuery v1.2.3 or later
 *
 * Examples at: http://malsup.com/jquery/block/
 * Copyright (c) 2007-2008 M. Alsup
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Thanks to Amir-Hossein Sobhi for some excellent contributions!
 */

;(function($) {

if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
	alert('blockUI requires jQuery v1.2.3 or later!  You are using v' + $.fn.jquery);
	return;
}

$.fn._fadeIn = $.fn.fadeIn;

var noOp = function() {};

// this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
// retarded userAgent strings on Vista)
var mode = document.documentMode || 0;
var setExpr = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8);
var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent) && !mode;

// global $ methods for blocking/unblocking the entire page
$.blockUI   = function(opts) { install(window, opts); };
$.unblockUI = function(opts) { remove(window, opts); };

// convenience method for quick growl-like notifications  (http://www.google.com/search?q=growl)
$.growlUI = function(title, message, timeout, onClose) {
	var $m = $('<div class="growlUI"></div>');
	if (title) $m.append('<h1>'+title+'</h1>');
	if (message) $m.append('<h2>'+message+'</h2>');
	if (timeout == undefined) timeout = 3000;
	$.blockUI({
		message: $m, fadeIn: 700, fadeOut: 1000, centerY: false,
		timeout: timeout, showOverlay: false,
		onUnblock: onClose,
		css: $.blockUI.defaults.growlCSS
	});
};

// plugin method for blocking element content
$.fn.block = function(opts) {
	return this.unblock({ fadeOut: 0 }).each(function() {
		if ($.css(this,'position') == 'static')
			this.style.position = 'relative';
		if ($.browser.msie)
			this.style.zoom = 1; // force 'hasLayout'
		install(this, opts);
	});
};

// plugin method for unblocking element content
$.fn.unblock = function(opts) {
	return this.each(function() {
		remove(this, opts);
	});
};

$.blockUI.version = 2.31; // 2nd generation blocking at no extra cost!

// override these in your code to change the default behavior and style
$.blockUI.defaults = {
	// message displayed when blocking (use null for no message)
	message:  '<img src="/design/ajax-loader.gif" alt="ajax-loader" height="32" width="32" />',

	title: null,	  // title string; only used when theme == true
	draggable: true,  // only used when theme == true (requires jquery-ui.js to be loaded)

	theme: false, // set to true to use with jQuery UI themes

	// styles for the message when blocking; if you wish to disable
	// these and use an external stylesheet then do this in your code:
	// $.blockUI.defaults.css = {};
	css: {
		padding:	'39px 0 39px 0',
		marginLeft:	'-55px',
		width:		'110px',
		height:		'32px',
		top:		'30%',
		left:		'50%',
		textAlign:	'center',
		color:		'#000',
		 border:		'2px solid',
		backgroundColor:'#fff',
		cursor:		'wait'
	},

	// minimal style set used when themes are used
	themedCSS: {
		width:	'30%',
		top:	'40%',
		left:	'35%'
	},

	// styles for the overlay
	overlayCSS:  {
		backgroundColor: '#000',
		opacity:	  	 0.15,
		cursor:		  	 'wait'
	},

	// styles applied when using $.growlUI
	growlCSS: {
		width:  	'350px',
		top:		'10px',
		left:   	'',
		right:  	'10px',
		border: 	'none',
		padding:	'5px',
		opacity:	0.6,
		cursor: 	'default',
		color:		'#fff',
		backgroundColor: '#000',
		'-webkit-border-radius': '10px',
		'-moz-border-radius':	 '10px'
	},

	// IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
	// (hat tip to Jorge H. N. de Vasconcelos)
	iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',

	// force usage of iframe in non-IE browsers (handy for blocking applets)
	forceIframe: false,

	// z-index for the blocking overlay
	baseZ: 1000,

	// set these to true to have the message automatically centered
	centerX: true, // <-- only effects element blocking (page block controlled via css above)
	centerY: true,

	// allow body element to be stetched in ie6; this makes blocking look better
	// on "short" pages.  disable if you wish to prevent changes to the body height
	allowBodyStretch: true,

	// enable if you want key and mouse events to be disabled for content that is blocked
	bindEvents: true,

	// be default blockUI will supress tab navigation from leaving blocking content
	// (if bindEvents is true)
	constrainTabKey: true,

	// fadeIn time in millis; set to 0 to disable fadeIn on block
	fadeIn:  100,

	// fadeOut time in millis; set to 0 to disable fadeOut on unblock
	fadeOut:  200,

	// time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
	timeout: 20000,

	// disable if you don't want to show the overlay
	showOverlay: true,

	// if true, focus will be placed in the first available input field when
	// page blocking
	focusInput: true,

	// suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
	applyPlatformOpacityRules: true,

	// callback method invoked when fadeIn has completed and blocking message is visible
	onBlock: null,

	// callback method invoked when unblocking has completed; the callback is
	// passed the element that has been unblocked (which is the window object for page
	// blocks) and the options that were passed to the unblock call:
	//	 onUnblock(element, options)
	onUnblock: null,

	// don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
	quirksmodeOffsetHack: 4
};

// private data and functions follow...

var pageBlock = null;
var pageBlockEls = [];

function install(el, opts) {
	var full = (el == window);
	var msg = opts && opts.message !== undefined ? opts.message : undefined;
	opts = $.extend({}, $.blockUI.defaults, opts || {});
	opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
	var css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
	var themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
	msg = msg === undefined ? opts.message : msg;

	// remove the current block (if there is one)
	if (full && pageBlock)
		remove(window, {fadeOut:0});

	// if an existing element is being used as the blocking content then we capture
	// its current place in the DOM (and current display style) so we can restore
	// it when we unblock
	if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
		var node = msg.jquery ? msg[0] : msg;
		var data = {};
		$(el).data('blockUI.history', data);
		data.el = node;
		data.parent = node.parentNode;
		data.display = node.style.display;
		data.position = node.style.position;
		if (data.parent)
			data.parent.removeChild(node);
	}

	var z = opts.baseZ;

	// blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
	// layer1 is the iframe layer which is used to supress bleed through of underlying content
	// layer2 is the overlay layer which has opacity and a wait cursor (by default)
	// layer3 is the message content that is displayed while blocking

	var lyr1 = ($.browser.msie || opts.forceIframe)
		? $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>')
		: $('<div class="blockUI" style="display:none"></div>');
	var lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');

	var lyr3;
	if (opts.theme && full) {
		var s = '<div class="blockUI blockMsg blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+z+';display:none;position:fixed">' +
					'<div class="ui-widget-header ui-dialog-titlebar blockTitle">'+(opts.title || '&nbsp;')+'</div>' +
					'<div class="ui-widget-content ui-dialog-content"></div>' +
				'</div>';
		lyr3 = $(s);
	}
	else {
		lyr3 = full ? $('<div class="blockUI blockMsg blockPage" style="z-index:'+z+';display:none;position:fixed"></div>')
					: $('<div class="blockUI blockMsg blockElement" style="z-index:'+z+';display:none;position:absolute"></div>');
	}

	// if we have a message, style it
	if (msg) {
		if (opts.theme) {
			lyr3.css(themedCSS);
			lyr3.addClass('ui-widget-content');
		}
		else
			lyr3.css(css);
	}

	// style the overlay
	if (!opts.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform)))
		lyr2.css(opts.overlayCSS);
	lyr2.css('position', full ? 'fixed' : 'absolute');

	// make iframe layer transparent in IE
	if ($.browser.msie || opts.forceIframe)
		lyr1.css('opacity',0.0);

	//$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
	var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
	$.each(layers, function() {
		this.appendTo($par);
	});

	if (opts.theme && opts.draggable && $.fn.draggable) {
		lyr3.draggable({
			handle: '.ui-dialog-titlebar',
			cancel: 'li'
		});
	}

	// ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
	var expr = setExpr && (!$.boxModel || $('object,embed', full ? null : el).length > 0);
	if (ie6 || expr) {
		// give body 100% height
		if (full && opts.allowBodyStretch && $.boxModel)
			$('html,body').css('height','100%');

		// fix ie6 issue when blocked element has a border width
		if ((ie6 || !$.boxModel) && !full) {
			var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
			var fixT = t ? '(0 - '+t+')' : 0;
			var fixL = l ? '(0 - '+l+')' : 0;
		}

		// simulate fixed position
		$.each([lyr1,lyr2,lyr3], function(i,o) {
			var s = o[0].style;
			s.position = 'absolute';
			if (i < 2) {
				full ? s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"')
					 : s.setExpression('height','this.parentNode.offsetHeight + "px"');
				full ? s.setExpression('width','jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"')
					 : s.setExpression('width','this.parentNode.offsetWidth + "px"');
				if (fixL) s.setExpression('left', fixL);
				if (fixT) s.setExpression('top', fixT);
			}
			else if (opts.centerY) {
				if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
				s.marginTop = 0;
			}
			else if (!opts.centerY && full) {
				var top = (opts.css && opts.css.top) ? parseInt(opts.css.top) : 0;
				var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
				s.setExpression('top',expression);
			}
		});
	}

	// show the message
	if (msg) {
		if (opts.theme)
			lyr3.find('.ui-widget-content').append(msg);
		else
			lyr3.append(msg);
		if (msg.jquery || msg.nodeType)
			$(msg).show();
	}

	if (($.browser.msie || opts.forceIframe) && opts.showOverlay)
		lyr1.show(); // opacity is zero
	if (opts.fadeIn) {
		var cb = opts.onBlock ? opts.onBlock : noOp;
		var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
		var cb2 = msg ? cb : noOp;
		if (opts.showOverlay)
			lyr2._fadeIn(opts.fadeIn, cb1);
		if (msg)
			lyr3._fadeIn(opts.fadeIn, cb2);
	}
	else {
		if (opts.showOverlay)
			lyr2.show();
		if (msg)
			lyr3.show();
		if (opts.onBlock)
			opts.onBlock();
	}

	// bind key and mouse events
	bind(1, el, opts);

	if (full) {
		pageBlock = lyr3[0];
		pageBlockEls = $(':input:enabled:visible',pageBlock);
		if (opts.focusInput)
			setTimeout(focus, 20);
	}
	else
		center(lyr3[0], opts.centerX, opts.centerY);

	if (opts.timeout) {
		// auto-unblock
		var to = setTimeout(function() {
			full ? $.unblockUI(opts) : $(el).unblock(opts);
		}, opts.timeout);
		$(el).data('blockUI.timeout', to);
	}
};

// remove the block
function remove(el, opts) {
	var full = (el == window);
	var $el = $(el);
	var data = $el.data('blockUI.history');
	var to = $el.data('blockUI.timeout');
	if (to) {
		clearTimeout(to);
		$el.removeData('blockUI.timeout');
	}
	opts = $.extend({}, $.blockUI.defaults, opts || {});
	bind(0, el, opts); // unbind events

	var els;
	if (full) // crazy selector to handle odd field errors in ie6/7
		els = $('body').children().filter('.blockUI').add('body > .blockUI');
	else
		els = $('.blockUI', el);

	if (full)
		pageBlock = pageBlockEls = null;

	if (opts.fadeOut) {
		els.fadeOut(opts.fadeOut);
		setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
	}
	else
		reset(els, data, opts, el);
};

// move blocking element back into the DOM where it started
function reset(els,data,opts,el) {
	els.each(function(i,o) {
		// remove via DOM calls so we don't lose event handlers
		if (this.parentNode)
			this.parentNode.removeChild(this);
	});

	if (data && data.el) {
		data.el.style.display = data.display;
		data.el.style.position = data.position;
		if (data.parent)
			data.parent.appendChild(data.el);
		$(el).removeData('blockUI.history');
	}

	if (typeof opts.onUnblock == 'function')
		opts.onUnblock(el,opts);
};

// bind/unbind the handler
function bind(b, el, opts) {
	var full = el == window, $el = $(el);

	// don't bother unbinding if there is nothing to unbind
	if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
		return;
	if (!full)
		$el.data('blockUI.isBlocked', b);

	// don't bind events when overlay is not in use or if bindEvents is false
	if (!opts.bindEvents || (b && !opts.showOverlay))
		return;

	// bind anchors and inputs for mouse and key events
	var events = 'mousedown mouseup keydown keypress';
	b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler);

// former impl...
//	   var $e = $('a,:input');
//	   b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
};

// event handler to suppress keyboard/mouse events when blocking
function handler(e) {
	// allow tab navigation (conditionally)
	if (e.keyCode && e.keyCode == 9) {
		if (pageBlock && e.data.constrainTabKey) {
			var els = pageBlockEls;
			var fwd = !e.shiftKey && e.target == els[els.length-1];
			var back = e.shiftKey && e.target == els[0];
			if (fwd || back) {
				setTimeout(function(){focus(back)},10);
				return false;
			}
		}
	}
	// allow events within the message content
	if ($(e.target).parents('div.blockMsg').length > 0)
		return true;

	// allow events for content that is not being blocked
	return $(e.target).parents().children().filter('div.blockUI').length == 0;
};

function focus(back) {
	if (!pageBlockEls)
		return;
	var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
	if (e)
		e.focus();
};

function center(el, x, y) {
	var p = el.parentNode, s = el.style;
	var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
	var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
	if (x) s.left = l > 0 ? (l+'px') : '0';
	if (y) s.top  = t > 0 ? (t+'px') : '0';
};

function sz(el, p) {
	return parseInt($.css(el,p))||0;
};

})(jQuery);

$(document).ajaxStart($.blockUI).ajaxStop($.unblockUI);