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+/*!
+ * jQuery UI 1.8.9
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI
+ */
+
+ /* BEGIN jquery.ui.core.js */
+(function( $, undefined ) {
+
+// prevent duplicate loading
+// this is only a problem because we proxy existing functions
+// and we don't want to double proxy them
+$.ui = $.ui || {};
+if ( $.ui.version ) {
+ return;
+}
+
+$.extend( $.ui, {
+ version: "1.8.9",
+
+ keyCode: {
+ ALT: 18,
+ BACKSPACE: 8,
+ CAPS_LOCK: 20,
+ COMMA: 188,
+ COMMAND: 91,
+ COMMAND_LEFT: 91, // COMMAND
+ COMMAND_RIGHT: 93,
+ CONTROL: 17,
+ DELETE: 46,
+ DOWN: 40,
+ END: 35,
+ ENTER: 13,
+ ESCAPE: 27,
+ HOME: 36,
+ INSERT: 45,
+ LEFT: 37,
+ MENU: 93, // COMMAND_RIGHT
+ NUMPAD_ADD: 107,
+ NUMPAD_DECIMAL: 110,
+ NUMPAD_DIVIDE: 111,
+ NUMPAD_ENTER: 108,
+ NUMPAD_MULTIPLY: 106,
+ NUMPAD_SUBTRACT: 109,
+ PAGE_DOWN: 34,
+ PAGE_UP: 33,
+ PERIOD: 190,
+ RIGHT: 39,
+ SHIFT: 16,
+ SPACE: 32,
+ TAB: 9,
+ UP: 38,
+ WINDOWS: 91 // COMMAND
+ }
+});
+
+// plugins
+$.fn.extend({
+ _focus: $.fn.focus,
+ focus: function( delay, fn ) {
+ return typeof delay === "number" ?
+ this.each(function() {
+ var elem = this;
+ setTimeout(function() {
+ $( elem ).focus();
+ if ( fn ) {
+ fn.call( elem );
+ }
+ }, delay );
+ }) :
+ this._focus.apply( this, arguments );
+ },
+
+ scrollParent: function() {
+ var scrollParent;
+ if (($.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" ), 10 );
+ if ( !isNaN( value ) && value !== 0 ) {
+ return value;
+ }
+ }
+ elem = elem.parent();
+ }
+ }
+
+ return 0;
+ },
+
+ disableSelection: function() {
+ return this.bind( ( $.support.selectstart ? "selectstart" : "mousedown" ) +
+ ".ui-disableSelection", function( event ) {
+ event.preventDefault();
+ });
+ },
+
+ enableSelection: function() {
+ return this.unbind( ".ui-disableSelection" );
+ }
+});
+
+$.each( [ "Width", "Height" ], function( i, name ) {
+ var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
+ type = name.toLowerCase(),
+ orig = {
+ innerWidth: $.fn.innerWidth,
+ innerHeight: $.fn.innerHeight,
+ outerWidth: $.fn.outerWidth,
+ outerHeight: $.fn.outerHeight
+ };
+
+ function reduce( elem, size, border, margin ) {
+ $.each( side, function() {
+ size -= parseFloat( $.curCSS( elem, "padding" + this, true) ) || 0;
+ if ( border ) {
+ size -= parseFloat( $.curCSS( elem, "border" + this + "Width", true) ) || 0;
+ }
+ if ( margin ) {
+ size -= parseFloat( $.curCSS( elem, "margin" + this, true) ) || 0;
+ }
+ });
+ return size;
+ }
+
+ $.fn[ "inner" + name ] = function( size ) {
+ if ( size === undefined ) {
+ return orig[ "inner" + name ].call( this );
+ }
+
+ return this.each(function() {
+ $( this ).css( type, reduce( this, size ) + "px" );
+ });
+ };
+
+ $.fn[ "outer" + name] = function( size, margin ) {
+ if ( typeof size !== "number" ) {
+ return orig[ "outer" + name ].call( this, size );
+ }
+
+ return this.each(function() {
+ $( this).css( type, reduce( this, size, true, margin ) + "px" );
+ });
+ };
+});
+
+// selectors
+function visible( element ) {
+ return !$( element ).parents().andSelf().filter(function() {
+ return $.curCSS( this, "visibility" ) === "hidden" ||
+ $.expr.filters.hidden( this );
+ }).length;
+}
+
+$.extend( $.expr[ ":" ], {
+ data: function( elem, i, match ) {
+ return !!$.data( elem, match[ 3 ] );
+ },
+
+ focusable: function( element ) {
+ var nodeName = element.nodeName.toLowerCase(),
+ tabIndex = $.attr( element, "tabindex" );
+ if ( "area" === nodeName ) {
+ var map = element.parentNode,
+ mapName = map.name,
+ img;
+ if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
+ return false;
+ }
+ img = $( "img[usemap=#" + mapName + "]" )[0];
+ return !!img && visible( img );
+ }
+ return ( /input|select|textarea|button|object/.test( nodeName )
+ ? !element.disabled
+ : "a" == nodeName
+ ? element.href || !isNaN( tabIndex )
+ : !isNaN( tabIndex ))
+ // the element and all of its ancestors must be visible
+ && visible( element );
+ },
+
+ tabbable: function( element ) {
+ var tabIndex = $.attr( element, "tabindex" );
+ return ( isNaN( tabIndex ) || tabIndex >= 0 ) && $( element ).is( ":focusable" );
+ }
+});
+
+// support
+$(function() {
+ var body = document.body,
+ div = body.appendChild( div = document.createElement( "div" ) );
+
+ $.extend( div.style, {
+ minHeight: "100px",
+ height: "auto",
+ padding: 0,
+ borderWidth: 0
+ });
+
+ $.support.minHeight = div.offsetHeight === 100;
+ $.support.selectstart = "onselectstart" in div;
+
+ // set display to none to avoid a layout bug in IE
+ // http://dev.jquery.com/ticket/4014
+ body.removeChild( div ).style.display = "none";
+});
+
+
+
+
+
+// deprecated
+$.extend( $.ui, {
+ // $.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 );
+ }
+ }
+ }
+ },
+
+ // will be deprecated when we switch to jQuery 1.4 - use jQuery.contains()
+ contains: function( a, b ) {
+ return document.compareDocumentPosition ?
+ a.compareDocumentPosition( b ) & 16 :
+ a !== b && a.contains( b );
+ },
+
+ // only used by resizable
+ 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;
+ },
+
+ // these are odd functions, fix the API or move into individual plugins
+ 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 );
+ }
+});
+
+})( jQuery );
+
+/* BEGIN jquery.ui.widjet.js */
+(function( $, undefined ) {
+
+// jQuery 1.4+
+if ( $.cleanData ) {
+ var _cleanData = $.cleanData;
+ $.cleanData = function( elems ) {
+ for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
+ $( elem ).triggerHandler( "remove" );
+ }
+ _cleanData( elems );
+ };
+} else {
+ var _remove = $.fn.remove;
+ $.fn.remove = function( selector, keepData ) {
+ return this.each(function() {
+ if ( !keepData ) {
+ if ( !selector || $.filter( selector, [ this ] ).length ) {
+ $( "*", this ).add( [ this ] ).each(function() {
+ $( this ).triggerHandler( "remove" );
+ });
+ }
+ }
+ return _remove.call( $(this), selector, keepData );
+ });
+ };
+}
+
+$.widget = function( name, base, prototype ) {
+ var namespace = name.split( "." )[ 0 ],
+ fullName;
+ name = name.split( "." )[ 1 ];
+ fullName = namespace + "-" + name;
+
+ if ( !prototype ) {
+ prototype = base;
+ base = $.Widget;
+ }
+
+ // create selector for plugin
+ $.expr[ ":" ][ fullName ] = function( elem ) {
+ return !!$.data( elem, name );
+ };
+
+ $[ namespace ] = $[ namespace ] || {};
+ $[ namespace ][ name ] = function( options, element ) {
+ // allow instantiation without initializing for simple inheritance
+ if ( arguments.length ) {
+ this._createWidget( options, element );
+ }
+ };
+
+ var basePrototype = new base();
+ // we need to make the options hash a property directly on the new instance
+ // otherwise we'll modify the options hash on the prototype that we're
+ // inheriting from
+// $.each( basePrototype, function( key, val ) {
+// if ( $.isPlainObject(val) ) {
+// basePrototype[ key ] = $.extend( {}, val );
+// }
+// });
+ basePrototype.options = $.extend( true, {}, basePrototype.options );
+ $[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
+ namespace: namespace,
+ widgetName: name,
+ widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
+ widgetBaseClass: fullName
+ }, prototype );
+
+ $.widget.bridge( name, $[ namespace ][ name ] );
+};
+
+$.widget.bridge = function( name, object ) {
+ $.fn[ name ] = function( options ) {
+ var isMethodCall = typeof options === "string",
+ args = Array.prototype.slice.call( arguments, 1 ),
+ returnValue = this;
+
+ // allow multiple hashes to be passed on init
+ options = !isMethodCall && args.length ?
+ $.extend.apply( null, [ true, options ].concat(args) ) :
+ options;
+
+ // prevent calls to internal methods
+ if ( isMethodCall && options.charAt( 0 ) === "_" ) {
+ return returnValue;
+ }
+
+ if ( isMethodCall ) {
+ this.each(function() {
+ var instance = $.data( this, name ),
+ methodValue = instance && $.isFunction( instance[options] ) ?
+ instance[ options ].apply( instance, args ) :
+ instance;
+ // TODO: add this back in 1.9 and use $.error() (see #5972)
+// if ( !instance ) {
+// throw "cannot call methods on " + name + " prior to initialization; " +
+// "attempted to call method '" + options + "'";
+// }
+// if ( !$.isFunction( instance[options] ) ) {
+// throw "no such method '" + options + "' for " + name + " widget instance";
+// }
+// var methodValue = instance[ options ].apply( instance, args );
+ if ( methodValue !== instance && methodValue !== undefined ) {
+ returnValue = methodValue;
+ return false;
+ }
+ });
+ } else {
+ this.each(function() {
+ var instance = $.data( this, name );
+ if ( instance ) {
+ instance.option( options || {} )._init();
+ } else {
+ $.data( this, name, new object( options, this ) );
+ }
+ });
+ }
+
+ return returnValue;
+ };
+};
+
+$.Widget = function( options, element ) {
+ // allow instantiation without initializing for simple inheritance
+ if ( arguments.length ) {
+ this._createWidget( options, element );
+ }
+};
+
+$.Widget.prototype = {
+ widgetName: "widget",
+ widgetEventPrefix: "",
+ options: {
+ disabled: false
+ },
+ _createWidget: function( options, element ) {
+ // $.widget.bridge stores the plugin instance, but we do it anyway
+ // so that it's stored even before the _create function runs
+ $.data( element, this.widgetName, this );
+ this.element = $( element );
+ this.options = $.extend( true, {},
+ this.options,
+ this._getCreateOptions(),
+ options );
+
+ var self = this;
+ this.element.bind( "remove." + this.widgetName, function() {
+ self.destroy();
+ });
+
+ this._create();
+ this._trigger( "create" );
+ this._init();
+ },
+ _getCreateOptions: function() {
+ return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ];
+ },
+ _create: function() {},
+ _init: function() {},
+
+ destroy: function() {
+ this.element
+ .unbind( "." + this.widgetName )
+ .removeData( this.widgetName );
+ this.widget()
+ .unbind( "." + this.widgetName )
+ .removeAttr( "aria-disabled" )
+ .removeClass(
+ this.widgetBaseClass + "-disabled " +
+ "ui-state-disabled" );
+ },
+
+ widget: function() {
+ return this.element;
+ },
+
+ option: function( key, value ) {
+ var options = key;
+
+ if ( arguments.length === 0 ) {
+ // don't return a reference to the internal hash
+ return $.extend( {}, this.options );
+ }
+
+ if (typeof key === "string" ) {
+ if ( value === undefined ) {
+ return this.options[ key ];
+ }
+ options = {};
+ options[ key ] = value;
+ }
+
+ this._setOptions( options );
+
+ return this;
+ },
+ _setOptions: function( options ) {
+ var self = this;
+ $.each( options, function( key, value ) {
+ self._setOption( key, value );
+ });
+
+ return this;
+ },
+ _setOption: function( key, value ) {
+ this.options[ key ] = value;
+
+ if ( key === "disabled" ) {
+ this.widget()
+ [ value ? "addClass" : "removeClass"](
+ this.widgetBaseClass + "-disabled" + " " +
+ "ui-state-disabled" )
+ .attr( "aria-disabled", value );
+ }
+
+ return this;
+ },
+
+ enable: function() {
+ return this._setOption( "disabled", false );
+ },
+ disable: function() {
+ return this._setOption( "disabled", true );
+ },
+
+ _trigger: function( type, event, data ) {
+ var callback = this.options[ type ];
+
+ event = $.Event( event );
+ event.type = ( type === this.widgetEventPrefix ?
+ type :
+ this.widgetEventPrefix + type ).toLowerCase();
+ data = data || {};
+
+ // 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() );
+ }
+};
+
+})( jQuery );
+
+/* BEGIN jquery.ui.mouse.js */
+(function( $, undefined ) {
+
+$.widget("ui.mouse", {
+ options: {
+ cancel: ':input,option',
+ distance: 1,
+ delay: 0
+ },
+ _mouseInit: function() {
+ var self = this;
+
+ this.element
+ .bind('mousedown.'+this.widgetName, function(event) {
+ return self._mouseDown(event);
+ })
+ .bind('click.'+this.widgetName, function(event) {
+ if (true === $.data(event.target, self.widgetName + '.preventClickEvent')) {
+ $.removeData(event.target, self.widgetName + '.preventClickEvent');
+ event.stopImmediatePropagation();
+ return false;
+ }
+ });
+
+ 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);
+ },
+
+ _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);
+ };
+ $(document)
+ .bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
+ .bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
+
+ event.preventDefault();
+ event.originalEvent.mouseHandled = true;
+ return true;
+ },
+
+ _mouseMove: function(event) {
+ // IE mouseup check - mouseup happened when mouse was out of window
+ if ($.browser.msie && !(document.documentMode >= 9) && !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;
+
+ if (event.target == this._mouseDownEvent.target) {
+ $.data(event.target, this.widgetName + '.preventClickEvent', true);
+ }
+
+ 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; }
+});
+
+})(jQuery);
+
+/* BEGIN jquery.ui.position.js */
+(function( $, undefined ) {
+
+$.ui = $.ui || {};
+
+var horizontalPositions = /left|center|right/,
+ verticalPositions = /top|center|bottom/,
+ center = "center",
+ _position = $.fn.position,
+ _offset = $.fn.offset;
+
+$.fn.position = function( options ) {
+ if ( !options || !options.of ) {
+ return _position.apply( this, arguments );
+ }
+
+ // make a copy, we don't want to modify arguments
+ options = $.extend( {}, options );
+
+ var target = $( options.of ),
+ targetElem = target[0],
+ collision = ( options.collision || "flip" ).split( " " ),
+ offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ],
+ targetWidth,
+ targetHeight,
+ basePosition;
+
+ if ( targetElem.nodeType === 9 ) {
+ targetWidth = target.width();
+ targetHeight = target.height();
+ basePosition = { top: 0, left: 0 };
+ // TODO: use $.isWindow() in 1.9
+ } else if ( targetElem.setTimeout ) {
+ targetWidth = target.width();
+ targetHeight = target.height();
+ basePosition = { top: target.scrollTop(), left: target.scrollLeft() };
+ } else if ( targetElem.preventDefault ) {
+ // force left top to allow flipping
+ options.at = "left top";
+ targetWidth = targetHeight = 0;
+ basePosition = { top: options.of.pageY, left: options.of.pageX };
+ } else {
+ targetWidth = target.outerWidth();
+ targetHeight = target.outerHeight();
+ basePosition = target.offset();
+ }
+
+ // force my and at to have valid horizontal and veritcal positions
+ // if a value is missing or invalid, it will be converted to center
+ $.each( [ "my", "at" ], function() {
+ var pos = ( options[this] || "" ).split( " " );
+ if ( pos.length === 1) {
+ pos = horizontalPositions.test( pos[0] ) ?
+ pos.concat( [center] ) :
+ verticalPositions.test( pos[0] ) ?
+ [ center ].concat( pos ) :
+ [ center, center ];
+ }
+ pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : center;
+ pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : center;
+ options[ this ] = pos;
+ });
+
+ // normalize collision option
+ if ( collision.length === 1 ) {
+ collision[ 1 ] = collision[ 0 ];
+ }
+
+ // normalize offset option
+ offset[ 0 ] = parseInt( offset[0], 10 ) || 0;
+ if ( offset.length === 1 ) {
+ offset[ 1 ] = offset[ 0 ];
+ }
+ offset[ 1 ] = parseInt( offset[1], 10 ) || 0;
+
+ if ( options.at[0] === "right" ) {
+ basePosition.left += targetWidth;
+ } else if ( options.at[0] === center ) {
+ basePosition.left += targetWidth / 2;
+ }
+
+ if ( options.at[1] === "bottom" ) {
+ basePosition.top += targetHeight;
+ } else if ( options.at[1] === center ) {
+ basePosition.top += targetHeight / 2;
+ }
+
+ basePosition.left += offset[ 0 ];
+ basePosition.top += offset[ 1 ];
+
+ return this.each(function() {
+ var elem = $( this ),
+ elemWidth = elem.outerWidth(),
+ elemHeight = elem.outerHeight(),
+ marginLeft = parseInt( $.curCSS( this, "marginLeft", true ) ) || 0,
+ marginTop = parseInt( $.curCSS( this, "marginTop", true ) ) || 0,
+ collisionWidth = elemWidth + marginLeft +
+ ( parseInt( $.curCSS( this, "marginRight", true ) ) || 0 ),
+ collisionHeight = elemHeight + marginTop +
+ ( parseInt( $.curCSS( this, "marginBottom", true ) ) || 0 ),
+ position = $.extend( {}, basePosition ),
+ collisionPosition;
+
+ if ( options.my[0] === "right" ) {
+ position.left -= elemWidth;
+ } else if ( options.my[0] === center ) {
+ position.left -= elemWidth / 2;
+ }
+
+ if ( options.my[1] === "bottom" ) {
+ position.top -= elemHeight;
+ } else if ( options.my[1] === center ) {
+ position.top -= elemHeight / 2;
+ }
+
+ // prevent fractions (see #5280)
+ position.left = Math.round( position.left );
+ position.top = Math.round( position.top );
+
+ collisionPosition = {
+ left: position.left - marginLeft,
+ top: position.top - marginTop
+ };
+
+ $.each( [ "left", "top" ], function( i, dir ) {
+ if ( $.ui.position[ collision[i] ] ) {
+ $.ui.position[ collision[i] ][ dir ]( position, {
+ targetWidth: targetWidth,
+ targetHeight: targetHeight,
+ elemWidth: elemWidth,
+ elemHeight: elemHeight,
+ collisionPosition: collisionPosition,
+ collisionWidth: collisionWidth,
+ collisionHeight: collisionHeight,
+ offset: offset,
+ my: options.my,
+ at: options.at
+ });
+ }
+ });
+
+ if ( $.fn.bgiframe ) {
+ elem.bgiframe();
+ }
+ elem.offset( $.extend( position, { using: options.using } ) );
+ });
+};
+
+$.ui.position = {
+ fit: {
+ left: function( position, data ) {
+ var win = $( window ),
+ over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft();
+ position.left = over > 0 ? position.left - over : Math.max( position.left - data.collisionPosition.left, position.left );
+ },
+ top: function( position, data ) {
+ var win = $( window ),
+ over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop();
+ position.top = over > 0 ? position.top - over : Math.max( position.top - data.collisionPosition.top, position.top );
+ }
+ },
+
+ flip: {
+ left: function( position, data ) {
+ if ( data.at[0] === center ) {
+ return;
+ }
+ var win = $( window ),
+ over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft(),
+ myOffset = data.my[ 0 ] === "left" ?
+ -data.elemWidth :
+ data.my[ 0 ] === "right" ?
+ data.elemWidth :
+ 0,
+ atOffset = data.at[ 0 ] === "left" ?
+ data.targetWidth :
+ -data.targetWidth,
+ offset = -2 * data.offset[ 0 ];
+ position.left += data.collisionPosition.left < 0 ?
+ myOffset + atOffset + offset :
+ over > 0 ?
+ myOffset + atOffset + offset :
+ 0;
+ },
+ top: function( position, data ) {
+ if ( data.at[1] === center ) {
+ return;
+ }
+ var win = $( window ),
+ over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop(),
+ myOffset = data.my[ 1 ] === "top" ?
+ -data.elemHeight :
+ data.my[ 1 ] === "bottom" ?
+ data.elemHeight :
+ 0,
+ atOffset = data.at[ 1 ] === "top" ?
+ data.targetHeight :
+ -data.targetHeight,
+ offset = -2 * data.offset[ 1 ];
+ position.top += data.collisionPosition.top < 0 ?
+ myOffset + atOffset + offset :
+ over > 0 ?
+ myOffset + atOffset + offset :
+ 0;
+ }
+ }
+};
+
+// offset setter from jQuery 1.4
+if ( !$.offset.setOffset ) {
+ $.offset.setOffset = function( elem, options ) {
+ // set position first, in-case top/left are set even on static elem
+ if ( /static/.test( $.curCSS( elem, "position" ) ) ) {
+ elem.style.position = "relative";
+ }
+ var curElem = $( elem ),
+ curOffset = curElem.offset(),
+ curTop = parseInt( $.curCSS( elem, "top", true ), 10 ) || 0,
+ curLeft = parseInt( $.curCSS( elem, "left", true ), 10) || 0,
+ props = {
+ top: (options.top - curOffset.top) + curTop,
+ left: (options.left - curOffset.left) + curLeft
+ };
+
+ if ( 'using' in options ) {
+ options.using.call( elem, props );
+ } else {
+ curElem.css( props );
+ }
+ };
+
+ $.fn.offset = function( options ) {
+ var elem = this[ 0 ];
+ if ( !elem || !elem.ownerDocument ) { return null; }
+ if ( options ) {
+ return this.each(function() {
+ $.offset.setOffset( this, options );
+ });
+ }
+ return _offset.call( this );
+ };
+}
+
+}( jQuery ));