/*!
 * jQuery UI 1.8.1
 *
 * Copyright (c) 2010 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($) {
//Helper functions and ui object
$.ui = {
version: "1.8.1",
// $.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: {
	ALT: 18,
	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
}
};
//jQuery plugins
$.fn.extend({
_focus: $.fn.focus,
focus: function(delay, fn) {
	return typeof delay === 'number'
	? this.each(function() {
		var elem = this;
		setTimeout(function() {
		$(elem).focus();
		(fn && fn.call(elem));
		}, delay);
	})
	: this._focus.apply(this, arguments);
},
enableSelection: function() {
	return this
	.attr('unselectable', 'off')
	.css('MozUserSelect', '');
},
disableSelection: function() {
	return this
	.attr('unselectable', 'on')
	.css('MozUserSelect', 'none');
},
scrollParent: function() {
	var scrollParent;
	if(($.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;
},
zIndex: function(zIndex) {
	if (zIndex !== undefined) {
	return this.css('zIndex', zIndex);
	}
	
	if (this.length) {
	var elem = $(this[0]), position, value;
	while (elem.length && elem[0] !== document) {
		// Ignore z-index if position is set to a value where z-index is ignored by the browser
		// This makes behavior of this function consistent across browsers
		// WebKit always returns auto if the element is positioned
		position = elem.css('position');
		if (position == 'absolute' || position == 'relative' || position == 'fixed')
		{
		// IE returns 0 when zIndex is not specified
		// other browsers return a string
		// we ignore the case of nested elements with an explicit value of 0
		// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
		value = parseInt(elem.css('zIndex'));
		if (!isNaN(value) && value != 0) {
			return value;
		}
		}
		elem = elem.parent();
	}
	}
	return 0;
}
});
//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');
}
});
})(jQuery);