/*!
* jQuery UI @VERSION
*
* 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 isFF2 = $.browser.mozilla && (parseFloat($.browser.version) < 1.9);

    //Helper functions and ui object
    $.ui = {
        version: "@VERSION",

        // $.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({
        _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', '')
			.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;
        },

        zIndex: function(zIndex) {
            if (zIndex !== undefined) {
                return this.css('zIndex', zIndex);
            }

            var elem = this[0];
            while (elem && elem.style) {
                // IE returns 0 when zIndex is not specified
                // other browsers return an empty 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>
                if (elem.style.zIndex !== '' && elem.style.zIndex !== 0) {
                    return +elem.style.zIndex;
                }
                elem = elem.parentNode;
            }

            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);