/*
 * jQuery UI 1.5
 *
 * Copyright (c) 2008 Paul Bakaus (ui.jquery.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI
 *
 */
;(function($) {

$.ui = {
	plugin: {
		add: function(module, option, set) {
			var proto = $.ui[module].prototype;
			for(var i in set) {
				proto.plugins[i] = proto.plugins[i] || [];
				proto.plugins[i].push([option, set[i]]);
			}
		},
		call: function(instance, name, args) {
			var set = instance.plugins[name];
			if(!set) { return; }
			
			for (var i = 0; i < set.length; i++) {
				if (instance.options[set[i][0]]) {
					set[i][1].apply(instance.element, args);
				}
			}
		}	
	},
	cssCache: {},
	css: function(name) {
		if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }
		var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');
		
		//if (!$.browser.safari)
			//tmp.appendTo('body'); 
		
		//Opera and Safari set width and height to 0px instead of auto
		//Safari returns rgba(0,0,0,0) when bgcolor is not set
		$.ui.cssCache[name] = !!(
			(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) || 
			!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))
		);
		try { $('body').get(0).removeChild(tmp.get(0));	} catch(e){}
		return $.ui.cssCache[name];
	},
	disableSelection: function(e) {
		e.unselectable = "on";
		e.onselectstart = function() { return false; };
		if (e.style) { e.style.MozUserSelect = "none"; }
	},
	enableSelection: function(e) {
		e.unselectable = "off";
		e.onselectstart = function() { return true; };
		if (e.style) { e.style.MozUserSelect = ""; }
	},
	hasScroll: function(e, a) {
		var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false;
		if (e[scroll] > 0) return true; e[scroll] = 1;
		has = e[scroll] > 0 ? true : false; e[scroll] = 0;
		return has;
	}
};


/** jQuery core modifications and additions **/

var _remove = $.fn.remove;
$.fn.remove = function() {
	$("*", this).add(this).trigger("remove");
	return _remove.apply(this, arguments );
};

// $.widget is a factory to create jQuery plugins
// taking some boilerplate code out of the plugin code
// created by Scott González and Jörn Zaefferer
function getter(namespace, plugin, method) {
	var methods = $[namespace][plugin].getter || [];
	methods = (typeof methods == "string" ? methods.split(/,?\s+/) : methods);
	return ($.inArray(method, methods) != -1);
}

$.widget = function(name, prototype) {
	var namespace = name.split(".")[0];
	name = name.split(".")[1];
	
	// create plugin method
	$.fn[name] = function(options) {
		var isMethodCall = (typeof options == 'string'),
			args = Array.prototype.slice.call(arguments, 1);
		
		if (isMethodCall && getter(namespace, name, options)) {
			var instance = $.data(this[0], name);
			return (instance ? instance[options].apply(instance, args)
				: undefined);
		}
		
		return this.each(function() {
			var instance = $.data(this, name);
			if (isMethodCall && instance && $.isFunction(instance[options])) {
				instance[options].apply(instance, args);
			} else if (!isMethodCall) {
				$.data(this, name, new $[namespace][name](this, options));
			}
		});
	};
	
	// create widget constructor
	$[namespace][name] = function(element, options) {
		var self = this;
		
		this.widgetName = name;
		this.widgetBaseClass = namespace + '-' + name;
		
		this.options = $.extend({ disabled: false }, $[namespace][name].defaults, options);
		this.element = $(element)
			.bind('setData.' + name, function(e, key, value) {
				return self.setData(key, value);
			})
			.bind('getData.' + name, function(e, key) {
				return self.getData(key);
			})
			.bind('remove', function() {
				return self.destroy();
			});
		this.init();
	};
	
	// add widget prototype
	$[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);
};

$.widget.prototype = {
	init: function() {},
	destroy: function() {
		this.element.removeData(this.widgetName);
	},
	
	getData: function(key) {
		return this.options[key];
	},
	setData: function(key, value) {
		this.options[key] = value;
		
		if (key == 'disabled') {
			this.element[value ? 'addClass' : 'removeClass'](
				this.widgetBaseClass + '-disabled');
		}
	},
	
	enable: function() {
		this.setData('disabled', false);
	},
	disable: function() {
		this.setData('disabled', true);
	}
};


/** Mouse Interaction Plugin **/

$.ui.mouse = {
	mouseInit: function() {
		var self = this;
	
		this.element.bind('mousedown.'+this.widgetName, function(e) {
			return self.mouseDown(e);
		});
		
		// Prevent text selection in IE
		if ($.browser.msie) {
			this._mouseUnselectable = this.element.attr('unselectable');
			this.element.attr('unselectable', 'on');
		}
		
		this.started = false;
	},
	
	// TODO: make sure destroying one instance of mouse doesn't mess with
	// other instances of mouse
	mouseDestroy: function() {
		this.element.unbind('.'+this.widgetName);
		
		// Restore text selection in IE
		($.browser.msie
			&& this.element.attr('unselectable', this._mouseUnselectable));
	},
	
	mouseDown: function(e) {
		// we may have missed mouseup (out of window)
		(this._mouseStarted && this.mouseUp(e));
		
		this._mouseDownEvent = e;
		
		var self = this,
			btnIsLeft = (e.which == 1),
			elIsCancel = (typeof this.options.cancel == "string" ? $(e.target).is(this.options.cancel) : false);
		if (!btnIsLeft || elIsCancel || !this.mouseCapture(e)) {
			return true;
		}
		
		this._mouseDelayMet = !this.options.delay;
		if (!this._mouseDelayMet) {
			this._mouseDelayTimer = setTimeout(function() {
				self._mouseDelayMet = true;
			}, this.options.delay);
		}
		
		if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {
			this._mouseStarted = (this.mouseStart(e) !== false);
			if (!this._mouseStarted) { e.preventDefault(); return true; }
		}
		
		// these delegates are required to keep context
		this._mouseMoveDelegate = function(e) {
			return self.mouseMove(e);
		};
		this._mouseUpDelegate = function(e) {
			return self.mouseUp(e);
		};
		$(document)
			.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
		
		return false;
	},
	
	mouseMove: function(e) {
		// IE mouseup check - mouseup happened when mouse was out of window
		if ($.browser.msie && !e.button) {
			return this.mouseUp(e);
		}
		
		if (this._mouseStarted) {
			this.mouseDrag(e);
			return false;
		}
		
		if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {
			this._mouseStarted =
				(this.mouseStart(this._mouseDownEvent, e) !== false);
			(this._mouseStarted ? this.mouseDrag(e) : this.mouseUp(e));
		}
		
		return !this._mouseStarted;
	},
	
	mouseUp: function(e) {
		$(document)
			.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
		
		if (this._mouseStarted) {
			this._mouseStarted = false;
			this.mouseStop(e);
		}
		
		return false;
	},
	
	mouseDistanceMet: function(e) {
		return (Math.max(
				Math.abs(this._mouseDownEvent.pageX - e.pageX),
				Math.abs(this._mouseDownEvent.pageY - e.pageY)
			) >= this.options.distance
		);
	},
	
	mouseDelayMet: function(e) {
		return this._mouseDelayMet;
	},
	
	// These are placeholder methods, to be overriden by extending plugin
	mouseStart: function(e) {},
	mouseDrag: function(e) {},
	mouseStop: function(e) {},
	mouseCapture: function(e) { return true; }
};

$.ui.mouse.defaults = {
	cancel: null,
	distance: 1,
	delay: 0
};

})(jQuery);
/*
 * jQuery UI Slider
 *
 * Copyright (c) 2008 Paul Bakaus
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Slider
 *
 * Depends:
 *	ui.core.js
 *
 */
(function($) {

$.fn.unwrap = $.fn.unwrap || function(expr) {
  return this.each(function(){
     $(this).parents(expr).eq(0).after(this).remove();
  });
};

$.widget("ui.slider", {
	plugins: {},
	ui: function(e) {
		return {
			options: this.options,
			handle: this.currentHandle,
			value: this.options.axis != "both" || !this.options.axis ? Math.round(this.value(null,this.options.axis == "vertical" ? "y" : "x")) : {
				x: Math.round(this.value(null,"x")),
				y: Math.round(this.value(null,"y"))
			},
			range: this.getRange()
		};
	},
	propagate: function(n,e) {
		$.ui.plugin.call(this, n, [e, this.ui()]);
		this.element.triggerHandler(n == "slide" ? n : "slide"+n, [e, this.ui()], this.options[n]);
	},
	destroy: function() {
		this.element
			.removeClass("ui-slider ui-slider-disabled")
			.removeData("slider")
			.unbind(".slider");
		this.handle
			.unwrap("a");
		this.handle.each(function() {
			$(this).data("mouse").mouseDestroy();
		});
		this.generated && this.generated.remove();
	},
	setData: function(key, value) {
		$.widget.prototype.setData.apply(this, arguments);
		if (/min|max|steps/.test(key)) {
			this.initBoundaries();
		}
	},

	init: function() {
		
		var self = this;
		this.element.addClass("ui-slider");
		this.initBoundaries();
		
		// Initialize mouse and key events for interaction
		this.handle = $(this.options.handle, this.element);
		if (!this.handle.length) {
			self.handle = self.generated = $(self.options.handles || [0]).map(function() {
				var handle = $("<div/>").addClass("ui-slider-handle").appendTo(self.element);
				if (this.id)
					handle.attr("id", this.id);
				return handle[0];
			});
		}
		
		
		var handleclass = function(el) {
			this.element = $(el);
			this.element.data("mouse", this);
			this.options = self.options;
			
			this.element.bind("mousedown", function() {
				if(self.currentHandle) this.blur(self.currentHandle);
				self.focus(this,1);
			});
			
			this.mouseInit();
		};
		
		$.extend(handleclass.prototype, $.ui.mouse, {
			mouseStart: function(e) { return self.start.call(self, e, this.element[0]); },
			mouseStop: function(e) { return self.stop.call(self, e, this.element[0]); },
			mouseDrag: function(e) { return self.drag.call(self, e, this.element[0]); },
			mouseCapture: function() { return true; },
			trigger: function(e) { this.mouseDown(e); }
		});
		
		
		$(this.handle)
			.each(function() {
				new handleclass(this);
			})
			.wrap('<a href="javascript:void(0)" style="cursor:default;"></a>')
			.parent()
				.bind('focus', function(e) { self.focus(this.firstChild); })
				.bind('blur', function(e) { self.blur(this.firstChild); })
				.bind('keydown', function(e) { if(!self.options.noKeyboard) self.keydown(e.keyCode, this.firstChild); })
		;
		
		// Bind the click to the slider itself
		this.element.bind('mousedown.slider', function(e) {
			self.click.apply(self, [e]);
			self.currentHandle.data("mouse").trigger(e);
			self.firstValue = self.firstValue + 1; //This is for always triggering the change event
		});
		
		// Move the first handle to the startValue
		$.each(this.options.handles || [], function(index, handle) {
			self.moveTo(handle.start, index, true);
		});
		if (!isNaN(this.options.startValue))
			this.moveTo(this.options.startValue, 0, true);

		this.previousHandle = $(this.handle[0]); //set the previous handle to the first to allow clicking before selecting the handle
		if(this.handle.length == 2 && this.options.range) this.createRange();
	},
	initBoundaries: function() {
		
		var element = this.element[0], o = this.options;
		this.actualSize = { width: this.element.outerWidth() , height: this.element.outerHeight() };			
		
		$.extend(o, {
			axis: o.axis || (element.offsetWidth < element.offsetHeight ? 'vertical' : 'horizontal'),
			max: !isNaN(parseInt(o.max,10)) ? { x: parseInt(o.max, 10), y: parseInt(o.max, 10) } : ({ x: o.max && o.max.x || 100, y: o.max && o.max.y || 100 }),
			min: !isNaN(parseInt(o.min,10)) ? { x: parseInt(o.min, 10), y: parseInt(o.min, 10) } : ({ x: o.min && o.min.x || 0, y: o.min && o.min.y || 0 })
		});
		//Prepare the real maxValue
		o.realMax = {
			x: o.max.x - o.min.x,
			y: o.max.y - o.min.y
		};
		//Calculate stepping based on steps
		o.stepping = {
			x: o.stepping && o.stepping.x || parseInt(o.stepping, 10) || (o.steps ? o.realMax.x/(o.steps.x || parseInt(o.steps, 10) || o.realMax.x) : 0),
			y: o.stepping && o.stepping.y || parseInt(o.stepping, 10) || (o.steps ? o.realMax.y/(o.steps.y || parseInt(o.steps, 10) || o.realMax.y) : 0)
		};
	},

	
	keydown: function(keyCode, handle) {
		if(/(37|38|39|40)/.test(keyCode)) {
			this.moveTo({
				x: /(37|39)/.test(keyCode) ? (keyCode == 37 ? '-' : '+') + '=' + this.oneStep("x") : 0,
				y: /(38|40)/.test(keyCode) ? (keyCode == 38 ? '-' : '+') + '=' + this.oneStep("y") : 0
			}, handle);
		}
	},
	focus: function(handle,hard) {
		this.currentHandle = $(handle).addClass('ui-slider-handle-active');
		if (hard)
			this.currentHandle.parent()[0].focus();
	},
	blur: function(handle) {
		$(handle).removeClass('ui-slider-handle-active');
		if(this.currentHandle && this.currentHandle[0] == handle) { this.previousHandle = this.currentHandle; this.currentHandle = null; };
	},
	click: function(e) {
		// This method is only used if:
		// - The user didn't click a handle
		// - The Slider is not disabled
		// - There is a current, or previous selected handle (otherwise we wouldn't know which one to move)
		
		var pointer = [e.pageX,e.pageY];
		
		var clickedHandle = false;
		this.handle.each(function() {
			if(this == e.target)
				clickedHandle = true;
		});
		if (clickedHandle || this.options.disabled || !(this.currentHandle || this.previousHandle))
			return;

		// If a previous handle was focussed, focus it again
		if (!this.currentHandle && this.previousHandle)
			this.focus(this.previousHandle, true);
		
		// propagate only for distance > 0, otherwise propagation is done my drag
		this.offset = this.element.offset();

		this.moveTo({
			y: this.convertValue(e.pageY - this.offset.top - this.currentHandle[0].offsetHeight/2, "y"),
			x: this.convertValue(e.pageX - this.offset.left - this.currentHandle[0].offsetWidth/2, "x")
		}, null, !this.options.distance);
	},
	


	createRange: function() {
		this.rangeElement = $('<div></div>')
			.addClass('ui-slider-range')
			.css({ position: 'absolute' })
			.appendTo(this.element);
		this.updateRange();
	},
	updateRange: function() {
			var prop = this.options.axis == "vertical" ? "top" : "left";
			var size = this.options.axis == "vertical" ? "height" : "width";
			this.rangeElement.css(prop, (parseInt($(this.handle[0]).css(prop),10) || 0) + this.handleSize(0, this.options.axis == "vertical" ? "y" : "x")/2);
			this.rangeElement.css(size, (parseInt($(this.handle[1]).css(prop),10) || 0) - (parseInt($(this.handle[0]).css(prop),10) || 0));
	},
	getRange: function() {
		return this.rangeElement ? this.convertValue(parseInt(this.rangeElement.css(this.options.axis == "vertical" ? "height" : "width"),10), this.options.axis == "vertical" ? "y" : "x") : null;
	},

	handleIndex: function() {
		return this.handle.index(this.currentHandle[0]);
	},
	value: function(handle, axis) {
		if(this.handle.length == 1) this.currentHandle = this.handle;
		if(!axis) axis = this.options.axis == "vertical" ? "y" : "x";

		var curHandle = $(handle != undefined && handle !== null ? this.handle[handle] || handle : this.currentHandle);
		
		if(curHandle.data("mouse").sliderValue) {
			return parseInt(curHandle.data("mouse").sliderValue[axis],10);
		} else {
			return parseInt(((parseInt(curHandle.css(axis == "x" ? "left" : "top"),10) / (this.actualSize[axis == "x" ? "width" : "height"] - this.handleSize(handle,axis))) * this.options.realMax[axis]) + this.options.min[axis],10);
		}

	},
	convertValue: function(value,axis) {
		return this.options.min[axis] + (value / (this.actualSize[axis == "x" ? "width" : "height"] - this.handleSize(null,axis))) * this.options.realMax[axis];
	},
	
	translateValue: function(value,axis) {
		return ((value - this.options.min[axis]) / this.options.realMax[axis]) * (this.actualSize[axis == "x" ? "width" : "height"] - this.handleSize(null,axis));
	},
	translateRange: function(value,axis) {
		if (this.rangeElement) {
			if (this.currentHandle[0] == this.handle[0] && value >= this.translateValue(this.value(1),axis))
				value = this.translateValue(this.value(1,axis) - this.oneStep(axis), axis);
			if (this.currentHandle[0] == this.handle[1] && value <= this.translateValue(this.value(0),axis))
				value = this.translateValue(this.value(0,axis) + this.oneStep(axis), axis);
		}
		if (this.options.handles) {
			var handle = this.options.handles[this.handleIndex()];
			if (value < this.translateValue(handle.min,axis)) {
				value = this.translateValue(handle.min,axis);
			} else if (value > this.translateValue(handle.max,axis)) {
				value = this.translateValue(handle.max,axis);
			}
		}
		return value;
	},
	translateLimits: function(value,axis) {
		if (value >= this.actualSize[axis == "x" ? "width" : "height"] - this.handleSize(null,axis))
			value = this.actualSize[axis == "x" ? "width" : "height"] - this.handleSize(null,axis);
		if (value <= 0)
			value = 0;
		return value;
	},
	handleSize: function(handle,axis) {
		return $(handle != undefined && handle !== null ? this.handle[handle] : this.currentHandle)[0]["offset"+(axis == "x" ? "Width" : "Height")];	
	},
	oneStep: function(axis) {
		return this.options.stepping[axis] || 1;
	},


	start: function(e, handle) {
	
		var o = this.options;
		if(o.disabled) return false;

		// Prepare the outer size
		this.actualSize = { width: this.element.outerWidth() , height: this.element.outerHeight() };
	
		// This is a especially ugly fix for strange blur events happening on mousemove events
		if (!this.currentHandle)
			this.focus(this.previousHandle, true); 

		this.offset = this.element.offset();
		
		this.handleOffset = this.currentHandle.offset();
		this.clickOffset = { top: e.pageY - this.handleOffset.top, left: e.pageX - this.handleOffset.left };
		
		this.firstValue = this.value();
		
		this.propagate('start', e);
		this.drag(e, handle);
		return true;
					
	},
	stop: function(e) {
		this.propagate('stop', e);
		if (this.firstValue != this.value())
			this.propagate('change', e);
		// This is a especially ugly fix for strange blur events happening on mousemove events
		this.focus(this.currentHandle, true);
		return false;
	},
	drag: function(e, handle) {

		var o = this.options;
		var position = { top: e.pageY - this.offset.top - this.clickOffset.top, left: e.pageX - this.offset.left - this.clickOffset.left};
		if(!this.currentHandle) this.focus(this.previousHandle, true); //This is a especially ugly fix for strange blur events happening on mousemove events

		position.left = this.translateLimits(position.left, "x");
		position.top = this.translateLimits(position.top, "y");
		
		if (o.stepping.x) {
			var value = this.convertValue(position.left, "x");
			value = Math.round(value / o.stepping.x) * o.stepping.x;
			position.left = this.translateValue(value, "x");	
		}
		if (o.stepping.y) {
			var value = this.convertValue(position.top, "y");
			value = Math.round(value / o.stepping.y) * o.stepping.y;
			position.top = this.translateValue(value, "y");	
		}
		
		position.left = this.translateRange(position.left, "x");
		position.top = this.translateRange(position.top, "y");

		if(o.axis != "vertical") this.currentHandle.css({ left: position.left });
		if(o.axis != "horizontal") this.currentHandle.css({ top: position.top });
		
		//Store the slider's value
		this.currentHandle.data("mouse").sliderValue = {
			x: Math.round(this.convertValue(position.left, "x")) || 0,
			y: Math.round(this.convertValue(position.top, "y")) || 0
		};
		
		if (this.rangeElement)
			this.updateRange();
		this.propagate('slide', e);
		return false;
	},
	
	moveTo: function(value, handle, noPropagation) {

		var o = this.options;

		// Prepare the outer size
		this.actualSize = { width: this.element.outerWidth() , height: this.element.outerHeight() };

		//If no handle has been passed, no current handle is available and we have multiple handles, return false
		if (handle == undefined && !this.currentHandle && this.handle.length != 1)
			return false; 
		
		//If only one handle is available, use it
		if (handle == undefined && !this.currentHandle)
			handle = 0;
		
		if (handle != undefined)
			this.currentHandle = this.previousHandle = $(this.handle[handle] || handle);


		if(value.x !== undefined && value.y !== undefined) {
			var x = value.x, y = value.y;
		} else {
			var x = value, y = value;
		}

		if(x !== undefined && x.constructor != Number) {
			var me = /^\-\=/.test(x), pe = /^\+\=/.test(x);
			if(me || pe) {
				x = this.value(null, "x") + parseInt(x.replace(me ? '=' : '+=', ''), 10);
			} else {
				x = isNaN(parseInt(x, 10)) ? undefined : parseInt(x, 10);
			}
		}
		
		if(y !== undefined && y.constructor != Number) {
			var me = /^\-\=/.test(y), pe = /^\+\=/.test(y);
			if(me || pe) {
				y = this.value(null, "y") + parseInt(y.replace(me ? '=' : '+=', ''), 10);
			} else {
				y = isNaN(parseInt(y, 10)) ? undefined : parseInt(y, 10);
			}
		}

		if(o.axis != "vertical" && x !== undefined) {
			if(o.stepping.x) x = Math.round(x / o.stepping.x) * o.stepping.x;
			x = this.translateValue(x, "x");
			x = this.translateLimits(x, "x");
			x = this.translateRange(x, "x");
			this.currentHandle.css({ left: x });
		}

		if(o.axis != "horizontal" && y !== undefined) {
			if(o.stepping.y) y = Math.round(y / o.stepping.y) * o.stepping.y;
			y = this.translateValue(y, "y");
			y = this.translateLimits(y, "y");
			y = this.translateRange(y, "y");
			this.currentHandle.css({ top: y });
		}
		
		if (this.rangeElement)
			this.updateRange();
			
		//Store the slider's value
		this.currentHandle.data("mouse").sliderValue = {
			x: Math.round(this.convertValue(x, "x")) || 0,
			y: Math.round(this.convertValue(y, "y")) || 0
		};
	
		if (!noPropagation) {
			this.propagate('start', null);
			this.propagate('stop', null);
			this.propagate('change', null);
			this.propagate("slide", null);
		}
	}
});

$.ui.slider.getter = "value";

$.ui.slider.defaults = {
	handle: ".ui-slider-handle",
	distance: 1
};

})(jQuery);
/*
 * jQuery UI Tabs
 *
 * Copyright (c) 2007, 2008 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Tabs
 *
 * Depends:
 *	ui.core.js
 *
 */
(function($) {

$.widget("ui.tabs", {
	init: function() {
		this.options.event += '.tabs'; // namespace event
		
		// create tabs
		this.tabify(true);
	},
	setData: function(key, value) {
		if ((/^selected/).test(key))
			this.select(value);
		else {
			this.options[key] = value;
			this.tabify();
		}
	},
	length: function() {
		return this.$tabs.length;
	},
	tabId: function(a) {
		return a.title && a.title.replace(/\s/g, '_').replace(/[^A-Za-z0-9\-_:\.]/g, '')
			|| this.options.idPrefix + $.data(a);
	},
	ui: function(tab, panel) {
		return {
			options: this.options,
			tab: tab,
			panel: panel
		};
	},
	tabify: function(init) {

		this.$lis = $('li:has(a[href])', this.element);
		this.$tabs = this.$lis.map(function() { return $('a', this)[0]; });
		this.$panels = $([]);

		var self = this, o = this.options;

		this.$tabs.each(function(i, a) {
			// inline tab
			if (a.hash && a.hash.replace('#', '')) // Safari 2 reports '#' for an empty hash
				self.$panels = self.$panels.add(a.hash);
			// remote tab
			else if ($(a).attr('href') != '#') { // prevent loading the page itself if href is just "#"
				$.data(a, 'href.tabs', a.href); // required for restore on destroy
				$.data(a, 'load.tabs', a.href); // mutable
				var id = self.tabId(a);
				a.href = '#' + id;
				var $panel = $('#' + id);
				if (!$panel.length) {
					$panel = $(o.panelTemplate).attr('id', id).addClass(o.panelClass)
						.insertAfter( self.$panels[i - 1] || self.element );
					$panel.data('destroy.tabs', true);
				}
				self.$panels = self.$panels.add( $panel );
			}
			// invalid tab href
			else
				o.disabled.push(i + 1);
		});

		if (init) {

			// attach necessary classes for styling if not present
			this.element.addClass(o.navClass);
			this.$panels.each(function() {
				var $this = $(this);
				$this.addClass(o.panelClass);
			});

			// Selected tab
			// use "selected" option or try to retrieve:
			// 1. from fragment identifier in url
			// 2. from cookie
			// 3. from selected class attribute on <li>
			if (o.selected === undefined) {
				if (location.hash) {
					this.$tabs.each(function(i, a) {
						if (a.hash == location.hash) {
							o.selected = i;
							// prevent page scroll to fragment
							if ($.browser.msie || $.browser.opera) { // && !o.remote
								var $toShow = $(location.hash), toShowId = $toShow.attr('id');
								$toShow.attr('id', '');
								setTimeout(function() {
									$toShow.attr('id', toShowId); // restore id
								}, 500);
							}
							scrollTo(0, 0);
							return false; // break
						}
					});
				}
				else if (o.cookie) {
					var index = parseInt($.cookie('ui-tabs' + $.data(self.element)),10);
					if (index && self.$tabs[index])
						o.selected = index;
				}
				else if (self.$lis.filter('.' + o.selectedClass).length)
					o.selected = self.$lis.index( self.$lis.filter('.' + o.selectedClass)[0] );
			}
			o.selected = o.selected === null || o.selected !== undefined ? o.selected : 0; // first tab selected by default

			// Take disabling tabs via class attribute from HTML
			// into account and update option properly.
			// A selected tab cannot become disabled.
			o.disabled = $.unique(o.disabled.concat(
				$.map(this.$lis.filter('.' + o.disabledClass),
					function(n, i) { return self.$lis.index(n); } )
			)).sort();
			if ($.inArray(o.selected, o.disabled) != -1)
				o.disabled.splice($.inArray(o.selected, o.disabled), 1);
			
			// highlight selected tab
			this.$panels.addClass(o.hideClass);
			this.$lis.removeClass(o.selectedClass);
			if (o.selected !== null) {
				this.$panels.eq(o.selected).show().removeClass(o.hideClass); // use show and remove class to show in any case no matter how it has been hidden before
				this.$lis.eq(o.selected).addClass(o.selectedClass);
				
				// seems to be expected behavior that the show callback is fired
				var onShow = function() {
					$(self.element).triggerHandler('tabsshow',
						[self.ui(self.$tabs[o.selected], self.$panels[o.selected])], o.show);
				}; 

				// load if remote tab
				if ($.data(this.$tabs[o.selected], 'load.tabs'))
					this.load(o.selected, onShow);
				// just trigger show event
				else
					onShow();
				
			}
			
			// clean up to avoid memory leaks in certain versions of IE 6
			$(window).bind('unload', function() {
				self.$tabs.unbind('.tabs');
				self.$lis = self.$tabs = self.$panels = null;
			});

		}

		// disable tabs
		for (var i = 0, li; li = this.$lis[i]; i++)
			$(li)[$.inArray(i, o.disabled) != -1 && !$(li).hasClass(o.selectedClass) ? 'addClass' : 'removeClass'](o.disabledClass);

		// reset cache if switching from cached to not cached
		if (o.cache === false)
			this.$tabs.removeData('cache.tabs');
		
		// set up animations
		var hideFx, showFx, baseFx = { 'min-width': 0, duration: 1 }, baseDuration = 'normal';
		if (o.fx && o.fx.constructor == Array)
			hideFx = o.fx[0] || baseFx, showFx = o.fx[1] || baseFx;
		else
			hideFx = showFx = o.fx || baseFx;

		// reset some styles to maintain print style sheets etc.
		var resetCSS = { display: '', overflow: '', height: '' };
		if (!$.browser.msie) // not in IE to prevent ClearType font issue
			resetCSS.opacity = '';

		// Hide a tab, animation prevents browser scrolling to fragment,
		// $show is optional.
		function hideTab(clicked, $hide, $show) {
			$hide.animate(hideFx, hideFx.duration || baseDuration, function() { //
				$hide.addClass(o.hideClass).css(resetCSS); // maintain flexible height and accessibility in print etc.
				if ($.browser.msie && hideFx.opacity)
					$hide[0].style.filter = '';
				if ($show)
					showTab(clicked, $show, $hide);
			});
		}

		// Show a tab, animation prevents browser scrolling to fragment,
		// $hide is optional.
		function showTab(clicked, $show, $hide) {
			if (showFx === baseFx)
				$show.css('display', 'block'); // prevent occasionally occuring flicker in Firefox cause by gap between showing and hiding the tab panels
			$show.animate(showFx, showFx.duration || baseDuration, function() {
				$show.removeClass(o.hideClass).css(resetCSS); // maintain flexible height and accessibility in print etc.
				if ($.browser.msie && showFx.opacity)
					$show[0].style.filter = '';

				// callback
				$(self.element).triggerHandler('tabsshow',
					[self.ui(clicked, $show[0])], o.show);

			});
		}

		// switch a tab
		function switchTab(clicked, $li, $hide, $show) {
			/*if (o.bookmarkable && trueClick) { // add to history only if true click occured, not a triggered click
				$.ajaxHistory.update(clicked.hash);
			}*/
			$li.addClass(o.selectedClass)
				.siblings().removeClass(o.selectedClass);
			hideTab(clicked, $hide, $show);
		}

		// attach tab event handler, unbind to avoid duplicates from former tabifying...
		this.$tabs.unbind('.tabs').bind(o.event, function() {

			//var trueClick = e.clientX; // add to history only if true click occured, not a triggered click
			var $li = $(this).parents('li:eq(0)'),
				$hide = self.$panels.filter(':visible'),
				$show = $(this.hash);

			// If tab is already selected and not unselectable or tab disabled or 
			// or is already loading or click callback returns false stop here.
			// Check if click handler returns false last so that it is not executed
			// for a disabled or loading tab!
			if (($li.hasClass(o.selectedClass) && !o.unselect)
				|| $li.hasClass(o.disabledClass) 
				|| $(this).hasClass(o.loadingClass)
				|| $(self.element).triggerHandler('tabsselect', [self.ui(this, $show[0])], o.select) === false
				) {
				this.blur();
				return false;
			}

			self.options.selected = self.$tabs.index(this);

			// if tab may be closed
			if (o.unselect) {
				if ($li.hasClass(o.selectedClass)) {
					self.options.selected = null;
					$li.removeClass(o.selectedClass);
					self.$panels.stop();
					hideTab(this, $hide);
					this.blur();
					return false;
				} else if (!$hide.length) {
					self.$panels.stop();
					var a = this;
					self.load(self.$tabs.index(this), function() {
						$li.addClass(o.selectedClass).addClass(o.unselectClass);
						showTab(a, $show);
					});
					this.blur();
					return false;
				}
			}

			if (o.cookie)
				$.cookie('ui-tabs' + $.data(self.element), self.options.selected, o.cookie);

			// stop possibly running animations
			self.$panels.stop();

			// show new tab
			if ($show.length) {

				// prevent scrollbar scrolling to 0 and than back in IE7, happens only if bookmarking/history is enabled
				/*if ($.browser.msie && o.bookmarkable) {
					var showId = this.hash.replace('#', '');
					$show.attr('id', '');
					setTimeout(function() {
						$show.attr('id', showId); // restore id
					}, 0);
				}*/

				var a = this;
				self.load(self.$tabs.index(this), $hide.length ? 
					function() {
						switchTab(a, $li, $hide, $show);
					} :
					function() {
						$li.addClass(o.selectedClass);
						showTab(a, $show);
					}
				);

				// Set scrollbar to saved position - need to use timeout with 0 to prevent browser scroll to target of hash
				/*var scrollX = window.pageXOffset || document.documentElement && document.documentElement.scrollLeft || document.body.scrollLeft || 0;
				var scrollY = window.pageYOffset || document.documentElement && document.documentElement.scrollTop || document.body.scrollTop || 0;
				setTimeout(function() {
					scrollTo(scrollX, scrollY);
				}, 0);*/

			} else
				throw 'jQuery UI Tabs: Mismatching fragment identifier.';

			// Prevent IE from keeping other link focussed when using the back button
			// and remove dotted border from clicked link. This is controlled in modern
			// browsers via CSS, also blur removes focus from address bar in Firefox
			// which can become a usability and annoying problem with tabsRotate.
			if ($.browser.msie)
				this.blur();

			//return o.bookmarkable && !!trueClick; // convert trueClick == undefined to Boolean required in IE
			return false;

		});

		// disable click if event is configured to something else
		if (!(/^click/).test(o.event))
			this.$tabs.bind('click.tabs', function() { return false; });

	},
	add: function(url, label, index) {
		if (index == undefined) 
			index = this.$tabs.length; // append by default

		var o = this.options;
		var $li = $(o.tabTemplate.replace(/#\{href\}/g, url).replace(/#\{label\}/g, label));
		$li.data('destroy.tabs', true);

		var id = url.indexOf('#') == 0 ? url.replace('#', '') : this.tabId( $('a:first-child', $li)[0] );

		// try to find an existing element before creating a new one
		var $panel = $('#' + id);
		if (!$panel.length) {
			$panel = $(o.panelTemplate).attr('id', id)
				.addClass(o.hideClass)
				.data('destroy.tabs', true);
		}
		$panel.addClass(o.panelClass);
		if (index >= this.$lis.length) {
			$li.appendTo(this.element);
			$panel.appendTo(this.element[0].parentNode);
		} else {
			$li.insertBefore(this.$lis[index]);
			$panel.insertBefore(this.$panels[index]);
		}
		
		o.disabled = $.map(o.disabled,
			function(n, i) { return n >= index ? ++n : n });
			
		this.tabify();

		if (this.$tabs.length == 1) {
			$li.addClass(o.selectedClass);
			$panel.removeClass(o.hideClass);
			var href = $.data(this.$tabs[0], 'load.tabs');
			if (href)
				this.load(index, href);
		}

		// callback
		this.element.triggerHandler('tabsadd',
			[this.ui(this.$tabs[index], this.$panels[index])], o.add
		);
	},
	remove: function(index) {
		var o = this.options, $li = this.$lis.eq(index).remove(),
			$panel = this.$panels.eq(index).remove();

		// If selected tab was removed focus tab to the right or
		// in case the last tab was removed the tab to the left.
		if ($li.hasClass(o.selectedClass) && this.$tabs.length > 1)
			this.select(index + (index + 1 < this.$tabs.length ? 1 : -1));

		o.disabled = $.map($.grep(o.disabled, function(n, i) { return n != index; }),
			function(n, i) { return n >= index ? --n : n });

		this.tabify();

		// callback
		this.element.triggerHandler('tabsremove',
			[this.ui($li.find('a')[0], $panel[0])], o.remove
		);
	},
	enable: function(index) {
		var o = this.options;
		if ($.inArray(index, o.disabled) == -1)
			return;
			
		var $li = this.$lis.eq(index).removeClass(o.disabledClass);
		if ($.browser.safari) { // fix disappearing tab (that used opacity indicating disabling) after enabling in Safari 2...
			$li.css('display', 'inline-block');
			setTimeout(function() {
				$li.css('display', 'block');
			}, 0);
		}

		o.disabled = $.grep(o.disabled, function(n, i) { return n != index; });

		// callback
		this.element.triggerHandler('tabsenable',
			[this.ui(this.$tabs[index], this.$panels[index])], o.enable
		);

	},
	disable: function(index) {
		var self = this, o = this.options;
		if (index != o.selected) { // cannot disable already selected tab
			this.$lis.eq(index).addClass(o.disabledClass);

			o.disabled.push(index);
			o.disabled.sort();

			// callback
			this.element.triggerHandler('tabsdisable',
				[this.ui(this.$tabs[index], this.$panels[index])], o.disable
			);
		}
	},
	select: function(index) {
		if (typeof index == 'string')
			index = this.$tabs.index( this.$tabs.filter('[href$=' + index + ']')[0] );
		this.$tabs.eq(index).trigger(this.options.event);
	},
	load: function(index, callback) { // callback is for internal usage only
		
		var self = this, o = this.options, $a = this.$tabs.eq(index), a = $a[0],
				bypassCache = callback == undefined || callback === false, url = $a.data('load.tabs');

		callback = callback || function() {};
		
		// no remote or from cache - just finish with callback
		if (!url || !bypassCache && $.data(a, 'cache.tabs')) {
			callback();
			return;
		}

		// load remote from here on
		
		var inner = function(parent) {
			var $parent = $(parent), $inner = $parent.find('*:last');
			return $inner.length && $inner || $parent;
		};
		var cleanup = function() {
			self.$tabs.filter('.' + o.loadingClass).removeClass(o.loadingClass)
						.each(function() {
							if (o.spinner)
								inner(this).parent().html(inner(this).data('label.tabs'));
						});
			self.xhr = null;
		};
		
		if (o.spinner) {
			var label = inner(a).html();
			inner(a).wrapInner('<em></em>')
				.find('em').data('label.tabs', label).html(o.spinner);
		}

		var ajaxOptions = $.extend({}, o.ajaxOptions, {
			url: url,
			success: function(r, s) {
				$(a.hash).html(r);
				cleanup();
				
				if (o.cache)
					$.data(a, 'cache.tabs', true); // if loaded once do not load them again

				// callbacks
				$(self.element).triggerHandler('tabsload',
					[self.ui(self.$tabs[index], self.$panels[index])], o.load
				);
				o.ajaxOptions.success && o.ajaxOptions.success(r, s);
				
				// This callback is required because the switch has to take
				// place after loading has completed. Call last in order to 
				// fire load before show callback...
				callback();
			}
		});
		if (this.xhr) {
			// terminate pending requests from other tabs and restore tab label
			this.xhr.abort();
			cleanup();
		}
		$a.addClass(o.loadingClass);
		setTimeout(function() { // timeout is again required in IE, "wait" for id being restored
			self.xhr = $.ajax(ajaxOptions);
		}, 0);

	},
	url: function(index, url) {
		this.$tabs.eq(index).removeData('cache.tabs').data('load.tabs', url);
	},
	destroy: function() {
		var o = this.options;
		this.element.unbind('.tabs')
			.removeClass(o.navClass).removeData('tabs');
		this.$tabs.each(function() {
			var href = $.data(this, 'href.tabs');
			if (href)
				this.href = href;
			var $this = $(this).unbind('.tabs');
			$.each(['href', 'load', 'cache'], function(i, prefix) {
				$this.removeData(prefix + '.tabs');
			});
		});
		this.$lis.add(this.$panels).each(function() {
			if ($.data(this, 'destroy.tabs'))
				$(this).remove();
			else
				$(this).removeClass([o.selectedClass, o.unselectClass,
					o.disabledClass, o.panelClass, o.hideClass].join(' '));
		});
	}
});

$.ui.tabs.defaults = {
	// basic setup
	unselect: false,
	event: 'click',
	disabled: [],
	cookie: null, // e.g. { expires: 7, path: '/', domain: 'jquery.com', secure: true }
	// TODO history: false,

	// Ajax
	spinner: 'Loading&#8230;',
	cache: false,
	idPrefix: 'ui-tabs-',
	ajaxOptions: {},

	// animations
	fx: null, // e.g. { height: 'toggle', opacity: 'toggle', duration: 200 }

	// templates
	tabTemplate: '<li><a href="#{href}"><span>#{label}</span></a></li>',
	panelTemplate: '<div></div>',

	// CSS classes
	navClass: 'ui-tabs-nav',
	selectedClass: 'ui-tabs-selected',
	unselectClass: 'ui-tabs-unselect',
	disabledClass: 'ui-tabs-disabled',
	panelClass: 'ui-tabs-panel',
	hideClass: 'ui-tabs-hide',
	loadingClass: 'ui-tabs-loading'
};

$.ui.tabs.getter = "length";

/*
 * Tabs Extensions
 */

/*
 * Rotate
 */
$.extend($.ui.tabs.prototype, {
	rotation: null,
	rotate: function(ms, continuing) {
		
		continuing = continuing || false;
		
		var self = this, t = this.options.selected;
		
		function start() {
			self.rotation = setInterval(function() {
				t = ++t < self.$tabs.length ? t : 0;
				self.select(t);
			}, ms); 
		}
		
		function stop(e) {
			if (!e || e.clientX) { // only in case of a true click
				clearInterval(self.rotation);
			}
		}
		
		// start interval
		if (ms) {
			start();
			if (!continuing)
				this.$tabs.bind(this.options.event, stop);
			else
				this.$tabs.bind(this.options.event, function() {
					stop();
					t = self.options.selected;
					start();
				});
		}
		// stop interval
		else {
			stop();
			this.$tabs.unbind(this.options.event, stop);
		}
	}
});

})(jQuery);