/*
 * jquery ui 1.7.2
 *
 * copyright (c) 2009 authors.txt (http://jqueryui.com/about)
 * dual licensed under the mit (mit-license.txt)
 * and gpl (gpl-license.txt) licenses.
 *
 * http://docs.jquery.com/ui
 */
;jquery.ui || (function($) {

var _remove = $.fn.remove,
	isff2 = $.browser.mozilla && (parsefloat($.browser.version) < 1.9);

//helper functions and ui object
$.ui = {
	version: "1.7.2",

	// $.ui.plugin is deprecated.  use the proxy pattern instead.
	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 || !instance.element[0].parentnode) { return; }

			for (var i = 0; i < set.length; i++) {
				if (instance.options[set[i][0]]) {
					set[i][1].apply(instance.element, args);
				}
			}
		}
	},

	contains: function(a, b) {
		return document.comparedocumentposition
			? a.comparedocumentposition(b) & 16
			: a !== b && a.contains(b);
	},

	hasscroll: function(el, a) {

		//if overflow is hidden, the element might have extra content, but the user wants to hide it
		if ($(el).css('overflow') == 'hidden') { return false; }

		var scroll = (a && a == 'left') ? 'scrollleft' : 'scrolltop',
			has = false;

		if (el[scroll] > 0) { return true; }

		// todo: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		el[scroll] = 1;
		has = (el[scroll] > 0);
		el[scroll] = 0;
		return has;
	},

	isoveraxis: function(x, reference, size) {
		//determines when x coordinate is over "b" element axis
		return (x > reference) && (x < (reference + size));
	},

	isover: function(y, x, top, left, height, width) {
		//determines when x, y coordinates is over "b" element
		return $.ui.isoveraxis(y, top, height) && $.ui.isoveraxis(x, left, width);
	},

	keycode: {
		backspace: 8,
		caps_lock: 20,
		comma: 188,
		control: 17,
		delete: 46,
		down: 40,
		end: 35,
		enter: 13,
		escape: 27,
		home: 36,
		insert: 45,
		left: 37,
		numpad_add: 107,
		numpad_decimal: 110,
		numpad_divide: 111,
		numpad_enter: 108,
		numpad_multiply: 106,
		numpad_subtract: 109,
		page_down: 34,
		page_up: 33,
		period: 190,
		right: 39,
		shift: 16,
		space: 32,
		tab: 9,
		up: 38
	}
};

// wai-aria normalization
if (isff2) {
	var attr = $.attr,
		removeattr = $.fn.removeattr,
		arians = "http://www.w3.org/2005/07/aaa",
		ariastate = /^aria-/,
		ariarole = /^wairole:/;

	$.attr = function(elem, name, value) {
		var set = value !== undefined;

		return (name == 'role'
			? (set
				? attr.call(this, elem, name, "wairole:" + value)
				: (attr.apply(this, arguments) || "").replace(ariarole, ""))
			: (ariastate.test(name)
				? (set
					? elem.setattributens(arians,
						name.replace(ariastate, "aaa:"), value)
					: attr.call(this, elem, name.replace(ariastate, "aaa:")))
				: attr.apply(this, arguments)));
	};

	$.fn.removeattr = function(name) {
		return (ariastate.test(name)
			? this.each(function() {
				this.removeattributens(arians, name.replace(ariastate, ""));
			}) : removeattr.call(this, name));
	};
}

//jquery plugins
$.fn.extend({
	remove: function() {
		// safari has a native remove event which actually removes dom elements,
		// so we have to use triggerhandler instead of trigger (#3037).
		$("*", this).add(this).each(function() {
			$(this).triggerhandler("remove");
		});
		return _remove.apply(this, arguments );
	},

	enableselection: function() {
		return this
			.attr('unselectable', 'off')
			.css('mozuserselect', '')
			.unbind('selectstart.ui');
	},

	disableselection: function() {
		return this
			.attr('unselectable', 'on')
			.css('mozuserselect', 'none')
			.bind('selectstart.ui', function() { return false; });
	},

	scrollparent: function() {
		var scrollparent;
		if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
			scrollparent = this.parents().filter(function() {
				return (/(relative|absolute|fixed)/).test($.curcss(this,'position',1)) && (/(auto|scroll)/).test($.curcss(this,'overflow',1)+$.curcss(this,'overflow-y',1)+$.curcss(this,'overflow-x',1));
			}).eq(0);
		} else {
			scrollparent = this.parents().filter(function() {
				return (/(auto|scroll)/).test($.curcss(this,'overflow',1)+$.curcss(this,'overflow-y',1)+$.curcss(this,'overflow-x',1));
			}).eq(0);
		}

		return (/fixed/).test(this.css('position')) || !scrollparent.length ? $(document) : scrollparent;
	}
});


//additional selectors
$.extend($.expr[':'], {
	data: function(elem, i, match) {
		return !!$.data(elem, match[3]);
	},

	focusable: function(element) {
		var nodename = element.nodename.tolowercase(),
			tabindex = $.attr(element, 'tabindex');
		return (/input|select|textarea|button|object/.test(nodename)
			? !element.disabled
			: 'a' == nodename || 'area' == nodename
				? element.href || !isnan(tabindex)
				: !isnan(tabindex))
			// the element and all of its ancestors must be visible
			// the browser may report that the area is hidden
			&& !$(element)['area' == nodename ? 'parents' : 'closest'](':hidden').length;
	},

	tabbable: function(element) {
		var tabindex = $.attr(element, 'tabindex');
		return (isnan(tabindex) || tabindex >= 0) && $(element).is(':focusable');
	}
});


// $.widget is a factory to create jquery plugins
// taking some boilerplate code out of the plugin code
function getter(namespace, plugin, method, args) {
	function getmethods(type) {
		var methods = $[namespace][plugin][type] || [];
		return (typeof methods == 'string' ? methods.split(/,?\s+/) : methods);
	}

	var methods = getmethods('getter');
	if (args.length == 1 && typeof args[0] == 'string') {
		methods = methods.concat(getmethods('gettersetter'));
	}
	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);

		// prevent calls to internal methods
		if (ismethodcall && options.substring(0, 1) == '_') {
			return this;
		}

		// handle getter methods
		if (ismethodcall && getter(namespace, name, options, args)) {
			var instance = $.data(this[0], name);
			return (instance ? instance[options].apply(instance, args)
				: undefined);
		}

		// handle initialization and non-getter methods
		return this.each(function() {
			var instance = $.data(this, name);

			// constructor
			(!instance && !ismethodcall &&
				$.data(this, name, new $[namespace][name](this, options))._init());

			// method call
			(instance && ismethodcall && $.isfunction(instance[options]) &&
				instance[options].apply(instance, args));
		});
	};

	// create widget constructor
	$[namespace] = $[namespace] || {};
	$[namespace][name] = function(element, options) {
		var self = this;

		this.namespace = namespace;
		this.widgetname = name;
		this.widgeteventprefix = $[namespace][name].eventprefix || name;
		this.widgetbaseclass = namespace + '-' + name;

		this.options = $.extend({},
			$.widget.defaults,
			$[namespace][name].defaults,
			$.metadata && $.metadata.get(element)[name],
			options);

		this.element = $(element)
			.bind('setdata.' + name, function(event, key, value) {
				if (event.target == element) {
					return self._setdata(key, value);
				}
			})
			.bind('getdata.' + name, function(event, key) {
				if (event.target == element) {
					return self._getdata(key);
				}
			})
			.bind('remove', function() {
				return self.destroy();
			});
	};

	// add widget prototype
	$[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);

	// todo: merge getter and gettersetter properties from widget prototype
	// and plugin prototype
	$[namespace][name].gettersetter = 'option';
};

$.widget.prototype = {
	_init: function() {},
	destroy: function() {
		this.element.removedata(this.widgetname)
			.removeclass(this.widgetbaseclass + '-disabled' + ' ' + this.namespace + '-state-disabled')
			.removeattr('aria-disabled');
	},

	option: function(key, value) {
		var options = key,
			self = this;

		if (typeof key == "string") {
			if (value === undefined) {
				return this._getdata(key);
			}
			options = {};
			options[key] = value;
		}

		$.each(options, function(key, value) {
			self._setdata(key, value);
		});
	},
	_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' + ' ' +
					this.namespace + '-state-disabled')
				.attr("aria-disabled", value);
		}
	},

	enable: function() {
		this._setdata('disabled', false);
	},
	disable: function() {
		this._setdata('disabled', true);
	},

	_trigger: function(type, event, data) {
		var callback = this.options[type],
			eventname = (type == this.widgeteventprefix
				? type : this.widgeteventprefix + type);

		event = $.event(event);
		event.type = eventname;

		// copy original event properties over to the new event
		// this would happen if we could call $.event.fix instead of $.event
		// but we don't have a way to force an event to be fixed multiple times
		if (event.originalevent) {
			for (var i = $.event.props.length, prop; i;) {
				prop = $.event.props[--i];
				event[prop] = event.originalevent[prop];
			}
		}

		this.element.trigger(event, data);

		return !($.isfunction(callback) && callback.call(this.element[0], event, data) === false
			|| event.isdefaultprevented());
	}
};

$.widget.defaults = {
	disabled: false
};


/** mouse interaction plugin **/

$.ui.mouse = {
	_mouseinit: function() {
		var self = this;

		this.element
			.bind('mousedown.'+this.widgetname, function(event) {
				return self._mousedown(event);
			})
			.bind('click.'+this.widgetname, function(event) {
				if(self._preventclickevent) {
					self._preventclickevent = false;
					event.stopimmediatepropagation();
					return false;
				}
			});

		// 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(event) {
		// don't let more than one widget handle mousestart
		// todo: figure out why we have to use originalevent
		event.originalevent = event.originalevent || {};
		if (event.originalevent.mousehandled) { return; }

		// we may have missed mouseup (out of window)
		(this._mousestarted && this._mouseup(event));

		this._mousedownevent = event;

		var self = this,
			btnisleft = (event.which == 1),
			eliscancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false);
		if (!btnisleft || eliscancel || !this._mousecapture(event)) {
			return true;
		}

		this.mousedelaymet = !this.options.delay;
		if (!this.mousedelaymet) {
			this._mousedelaytimer = settimeout(function() {
				self.mousedelaymet = true;
			}, this.options.delay);
		}

		if (this._mousedistancemet(event) && this._mousedelaymet(event)) {
			this._mousestarted = (this._mousestart(event) !== false);
			if (!this._mousestarted) {
				event.preventdefault();
				return true;
			}
		}

		// these delegates are required to keep context
		this._mousemovedelegate = function(event) {
			return self._mousemove(event);
		};
		this._mouseupdelegate = function(event) {
			return self._mouseup(event);
		};
		$(document)
			.bind('mousemove.'+this.widgetname, this._mousemovedelegate)
			.bind('mouseup.'+this.widgetname, this._mouseupdelegate);

		// preventdefault() is used to prevent the selection of text here -
		// however, in safari, this causes select boxes not to be selectable
		// anymore, so this fix is needed
		($.browser.safari || event.preventdefault());

		event.originalevent.mousehandled = true;
		return true;
	},

	_mousemove: function(event) {
		// ie mouseup check - mouseup happened when mouse was out of window
		if ($.browser.msie && !event.button) {
			return this._mouseup(event);
		}

		if (this._mousestarted) {
			this._mousedrag(event);
			return event.preventdefault();
		}

		if (this._mousedistancemet(event) && this._mousedelaymet(event)) {
			this._mousestarted =
				(this._mousestart(this._mousedownevent, event) !== false);
			(this._mousestarted ? this._mousedrag(event) : this._mouseup(event));
		}

		return !this._mousestarted;
	},

	_mouseup: function(event) {
		$(document)
			.unbind('mousemove.'+this.widgetname, this._mousemovedelegate)
			.unbind('mouseup.'+this.widgetname, this._mouseupdelegate);

		if (this._mousestarted) {
			this._mousestarted = false;
			this._preventclickevent = (event.target == this._mousedownevent.target);
			this._mousestop(event);
		}

		return false;
	},

	_mousedistancemet: function(event) {
		return (math.max(
				math.abs(this._mousedownevent.pagex - event.pagex),
				math.abs(this._mousedownevent.pagey - event.pagey)
			) >= this.options.distance
		);
	},

	_mousedelaymet: function(event) {
		return this.mousedelaymet;
	},

	// these are placeholder methods, to be overriden by extending plugin
	_mousestart: function(event) {},
	_mousedrag: function(event) {},
	_mousestop: function(event) {},
	_mousecapture: function(event) { return true; }
};

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

})(jquery);