/*!
 * jQuery UI 1.8.21
 *
 * Copyright 2012, 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
 */
(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: "1.8.21",

	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({
	propAttr: $.fn.prop || $.fn.attr,

	_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 focusable( element, isTabIndexNotNaN ) {
	var nodeName = element.nodeName.toLowerCase();
	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 || isTabIndexNotNaN
			: isTabIndexNotNaN)
		// the element and all of its ancestors must be visible
		&& visible( element );
}

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 ) {
		return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
	},

	tabbable: function( element ) {
		var tabIndex = $.attr( element, "tabindex" ),
			isTabIndexNaN = isNaN( tabIndex );
		return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
	}
});

// support
$(function() {
	var body = document.body,
		div = body.appendChild( div = document.createElement( "div" ) );

	// access offsetHeight before setting the style to prevent a layout bug
	// in IE 9 which causes the elemnt to continue to take up space even
	// after it is removed from the DOM (#8026)
	div.offsetHeight;

	$.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 );
/*!
 * jQuery UI Widget 1.8.21
 *
 * Copyright 2012, 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/Widget
 */
(function( $, undefined ) {

// jQuery 1.4+
if ( $.cleanData ) {
	var _cleanData = $.cleanData;
	$.cleanData = function( elems ) {
		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
			try {
				$( elem ).triggerHandler( "remove" );
			// http://bugs.jquery.com/ticket/8235
			} catch( e ) {}
		}
		_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() {
						try {
							$( this ).triggerHandler( "remove" );
						// http://bugs.jquery.com/ticket/8235
						} catch( e ) {}
					});
				}
			}
			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 prop, orig,
			callback = this.options[ type ];

		data = data || {};
		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();
		// the original event may come from any element
		// so we need to reset the target on the new event
		event.target = this.element[ 0 ];

		// copy original event properties over to the new event
		orig = event.originalEvent;
		if ( orig ) {
			for ( prop in orig ) {
				if ( !( prop in event ) ) {
					event[ prop ] = orig[ prop ];
				}
			}
		}

		this.element.trigger( event, data );

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

})( jQuery );
/*!
 * jQuery UI Mouse 1.8.21
 *
 * Copyright 2012, 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/Mouse
 *
 * Depends:
 *	jquery.ui.widget.js
 */
(function( $, undefined ) {

var mouseHandled = false;
$( document ).mouseup( function( e ) {
	mouseHandled = false;
});

$.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);
		$(document)
			.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
	},

	_mouseDown: function(event) {
		// don't let more than one widget handle mouseStart
		if( 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),
			// event.target.nodeName works around a bug in IE 8 with
			// disabled inputs (#7620)
			elIsCancel = (typeof this.options.cancel == "string" && event.target.nodeName ? $(event.target).closest(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;
			}
		}

		// Click event may never have fired (Gecko & Opera)
		if (true === $.data(event.target, this.widgetName + '.preventClickEvent')) {
			$.removeData(event.target, this.widgetName + '.preventClickEvent');
		}

		// 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();
		
		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);
/*!
 * jQuery UI Position 1.8.21
 *
 * Copyright 2012, 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/Position
 */
(function( $, undefined ) {

$.ui = $.ui || {};

var horizontalPositions = /left|center|right/,
	verticalPositions = /top|center|bottom/,
	center = "center",
	support = {},
	_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 if jQuery version doesn't support them (see #5280)
		if ( !support.fractions ) {
			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 ) {
			if ( $.isFunction( options ) ) {
				return this.each(function( i ) {
					$( this ).offset( options.call( this, i, $( this ).offset() ) );
				});
			}
			return this.each(function() {
				$.offset.setOffset( this, options );
			});
		}
		return _offset.call( this );
	};
}

// fraction support test (older versions of jQuery don't support fractions)
(function () {
	var body = document.getElementsByTagName( "body" )[ 0 ], 
		div = document.createElement( "div" ),
		testElement, testElementParent, testElementStyle, offset, offsetTotal;

	//Create a "fake body" for testing based on method used in jQuery.support
	testElement = document.createElement( body ? "div" : "body" );
	testElementStyle = {
		visibility: "hidden",
		width: 0,
		height: 0,
		border: 0,
		margin: 0,
		background: "none"
	};
	if ( body ) {
		$.extend( testElementStyle, {
			position: "absolute",
			left: "-1000px",
			top: "-1000px"
		});
	}
	for ( var i in testElementStyle ) {
		testElement.style[ i ] = testElementStyle[ i ];
	}
	testElement.appendChild( div );
	testElementParent = body || document.documentElement;
	testElementParent.insertBefore( testElement, testElementParent.firstChild );

	div.style.cssText = "position: absolute; left: 10.7432222px; top: 10.432325px; height: 30px; width: 201px;";

	offset = $( div ).offset( function( _, offset ) {
		return offset;
	}).offset();

	testElement.innerHTML = "";
	testElementParent.removeChild( testElement );

	offsetTotal = offset.top + offset.left + ( body ? 2000 : 0 );
	support.fractions = offsetTotal > 21 && offsetTotal < 22;
})();

}( jQuery ));
/*!
 * jQuery UI Dialog 1.8.21
 *
 * Copyright 2012, 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/Dialog
 *
 * Depends:
 *	jquery.ui.core.js
 *	jquery.ui.widget.js
 *  jquery.ui.button.js
 *	jquery.ui.draggable.js
 *	jquery.ui.mouse.js
 *	jquery.ui.position.js
 *	jquery.ui.resizable.js
 */
(function( $, undefined ) {

var uiDialogClasses =
		'ui-dialog ' +
		'ui-widget ' +
		'ui-widget-content ' +
		'ui-corner-all ',
	sizeRelatedOptions = {
		buttons: true,
		height: true,
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true,
		width: true
	},
	resizableRelatedOptions = {
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true
	},
	// support for jQuery 1.3.2 - handle common attrFn methods for dialog
	attrFn = $.attrFn || {
		val: true,
		css: true,
		html: true,
		text: true,
		data: true,
		width: true,
		height: true,
		offset: true,
		click: true
	};

$.widget("ui.dialog", {
	options: {
		autoOpen: true,
		buttons: {},
		closeOnEscape: true,
		closeText: 'close',
		dialogClass: '',
		draggable: true,
		hide: null,
		height: 'auto',
		maxHeight: false,
		maxWidth: false,
		minHeight: 150,
		minWidth: 150,
		modal: false,
		position: {
			my: 'center',
			at: 'center',
			collision: 'fit',
			// ensure that the titlebar is never outside the document
			using: function(pos) {
				var topOffset = $(this).css(pos).offset().top;
				if (topOffset < 0) {
					$(this).css('top', pos.top - topOffset);
				}
			}
		},
		resizable: true,
		show: null,
		stack: true,
		title: '',
		width: 300,
		zIndex: 1000
	},

	_create: function() {
		this.originalTitle = this.element.attr('title');
		// #5742 - .attr() might return a DOMElement
		if ( typeof this.originalTitle !== "string" ) {
			this.originalTitle = "";
		}

		this.options.title = this.options.title || this.originalTitle;
		var self = this,
			options = self.options,

			title = options.title || '&#160;',
			titleId = $.ui.dialog.getTitleId(self.element),

			uiDialog = (self.uiDialog = $('<div></div>'))
				.appendTo(document.body)
				.hide()
				.addClass(uiDialogClasses + options.dialogClass)
				.css({
					zIndex: options.zIndex
				})
				// setting tabIndex makes the div focusable
				// setting outline to 0 prevents a border on focus in Mozilla
				.attr('tabIndex', -1).css('outline', 0).keydown(function(event) {
					if (options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
						event.keyCode === $.ui.keyCode.ESCAPE) {
						
						self.close(event);
						event.preventDefault();
					}
				})
				.attr({
					role: 'dialog',
					'aria-labelledby': titleId
				})
				.mousedown(function(event) {
					self.moveToTop(false, event);
				}),

			uiDialogContent = self.element
				.show()
				.removeAttr('title')
				.addClass(
					'ui-dialog-content ' +
					'ui-widget-content')
				.appendTo(uiDialog),

			uiDialogTitlebar = (self.uiDialogTitlebar = $('<div></div>'))
				.addClass(
					'ui-dialog-titlebar ' +
					'ui-widget-header ' +
					'ui-corner-all ' +
					'ui-helper-clearfix'
				)
				.prependTo(uiDialog),

			uiDialogTitlebarClose = $('<a href="#"></a>')
				.addClass(
					'ui-dialog-titlebar-close ' +
					'ui-corner-all'
				)
				.attr('role', 'button')
				.hover(
					function() {
						uiDialogTitlebarClose.addClass('ui-state-hover');
					},
					function() {
						uiDialogTitlebarClose.removeClass('ui-state-hover');
					}
				)
				.focus(function() {
					uiDialogTitlebarClose.addClass('ui-state-focus');
				})
				.blur(function() {
					uiDialogTitlebarClose.removeClass('ui-state-focus');
				})
				.click(function(event) {
					self.close(event);
					return false;
				})
				.appendTo(uiDialogTitlebar),

			uiDialogTitlebarCloseText = (self.uiDialogTitlebarCloseText = $('<span></span>'))
				.addClass(
					'ui-icon ' +
					'ui-icon-closethick'
				)
				.text(options.closeText)
				.appendTo(uiDialogTitlebarClose),

			uiDialogTitle = $('<span></span>')
				.addClass('ui-dialog-title')
				.attr('id', titleId)
				.html(title)
				.prependTo(uiDialogTitlebar);

		//handling of deprecated beforeclose (vs beforeClose) option
		//Ticket #4669 http://dev.jqueryui.com/ticket/4669
		//TODO: remove in 1.9pre
		if ($.isFunction(options.beforeclose) && !$.isFunction(options.beforeClose)) {
			options.beforeClose = options.beforeclose;
		}

		uiDialogTitlebar.find("*").add(uiDialogTitlebar).disableSelection();

		if (options.draggable && $.fn.draggable) {
			self._makeDraggable();
		}
		if (options.resizable && $.fn.resizable) {
			self._makeResizable();
		}

		self._createButtons(options.buttons);
		self._isOpen = false;

		if ($.fn.bgiframe) {
			uiDialog.bgiframe();
		}
	},

	_init: function() {
		if ( this.options.autoOpen ) {
			this.open();
		}
	},

	destroy: function() {
		var self = this;
		
		if (self.overlay) {
			self.overlay.destroy();
		}
		self.uiDialog.hide();
		self.element
			.unbind('.dialog')
			.removeData('dialog')
			.removeClass('ui-dialog-content ui-widget-content')
			.hide().appendTo('body');
		self.uiDialog.remove();

		if (self.originalTitle) {
			self.element.attr('title', self.originalTitle);
		}

		return self;
	},

	widget: function() {
		return this.uiDialog;
	},

	close: function(event) {
		var self = this,
			maxZ, thisZ;
		
		if (false === self._trigger('beforeClose', event)) {
			return;
		}

		if (self.overlay) {
			self.overlay.destroy();
		}
		self.uiDialog.unbind('keypress.ui-dialog');

		self._isOpen = false;

		if (self.options.hide) {
			self.uiDialog.hide(self.options.hide, function() {
				self._trigger('close', event);
			});
		} else {
			self.uiDialog.hide();
			self._trigger('close', event);
		}

		$.ui.dialog.overlay.resize();

		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
		if (self.options.modal) {
			maxZ = 0;
			$('.ui-dialog').each(function() {
				if (this !== self.uiDialog[0]) {
					thisZ = $(this).css('z-index');
					if(!isNaN(thisZ)) {
						maxZ = Math.max(maxZ, thisZ);
					}
				}
			});
			$.ui.dialog.maxZ = maxZ;
		}

		return self;
	},

	isOpen: function() {
		return this._isOpen;
	},

	// the force parameter allows us to move modal dialogs to their correct
	// position on open
	moveToTop: function(force, event) {
		var self = this,
			options = self.options,
			saveScroll;

		if ((options.modal && !force) ||
			(!options.stack && !options.modal)) {
			return self._trigger('focus', event);
		}

		if (options.zIndex > $.ui.dialog.maxZ) {
			$.ui.dialog.maxZ = options.zIndex;
		}
		if (self.overlay) {
			$.ui.dialog.maxZ += 1;
			self.overlay.$el.css('z-index', $.ui.dialog.overlay.maxZ = $.ui.dialog.maxZ);
		}

		//Save and then restore scroll since Opera 9.5+ resets when parent z-Index is changed.
		//  http://ui.jquery.com/bugs/ticket/3193
		saveScroll = { scrollTop: self.element.scrollTop(), scrollLeft: self.element.scrollLeft() };
		$.ui.dialog.maxZ += 1;
		self.uiDialog.css('z-index', $.ui.dialog.maxZ);
		self.element.attr(saveScroll);
		self._trigger('focus', event);

		return self;
	},

	open: function() {
		if (this._isOpen) { return; }

		var self = this,
			options = self.options,
			uiDialog = self.uiDialog;

		self.overlay = options.modal ? new $.ui.dialog.overlay(self) : null;
		self._size();
		self._position(options.position);
		uiDialog.show(options.show);
		self.moveToTop(true);

		// prevent tabbing out of modal dialogs
		if ( options.modal ) {
			uiDialog.bind( "keydown.ui-dialog", function( event ) {
				if ( event.keyCode !== $.ui.keyCode.TAB ) {
					return;
				}

				var tabbables = $(':tabbable', this),
					first = tabbables.filter(':first'),
					last  = tabbables.filter(':last');

				if (event.target === last[0] && !event.shiftKey) {
					first.focus(1);
					return false;
				} else if (event.target === first[0] && event.shiftKey) {
					last.focus(1);
					return false;
				}
			});
		}

		// set focus to the first tabbable element in the content area or the first button
		// if there are no tabbable elements, set focus on the dialog itself
		$(self.element.find(':tabbable').get().concat(
			uiDialog.find('.ui-dialog-buttonpane :tabbable').get().concat(
				uiDialog.get()))).eq(0).focus();

		self._isOpen = true;
		self._trigger('open');

		return self;
	},

	_createButtons: function(buttons) {
		var self = this,
			hasButtons = false,
			uiDialogButtonPane = $('<div></div>')
				.addClass(
					'ui-dialog-buttonpane ' +
					'ui-widget-content ' +
					'ui-helper-clearfix'
				),
			uiButtonSet = $( "<div></div>" )
				.addClass( "ui-dialog-buttonset" )
				.appendTo( uiDialogButtonPane );

		// if we already have a button pane, remove it
		self.uiDialog.find('.ui-dialog-buttonpane').remove();

		if (typeof buttons === 'object' && buttons !== null) {
			$.each(buttons, function() {
				return !(hasButtons = true);
			});
		}
		if (hasButtons) {
			$.each(buttons, function(name, props) {
				props = $.isFunction( props ) ?
					{ click: props, text: name } :
					props;
				var button = $('<button type="button"></button>')
					.click(function() {
						props.click.apply(self.element[0], arguments);
					})
					.appendTo(uiButtonSet);
				// can't use .attr( props, true ) with jQuery 1.3.2.
				$.each( props, function( key, value ) {
					if ( key === "click" ) {
						return;
					}
					if ( key in attrFn ) {
						button[ key ]( value );
					} else {
						button.attr( key, value );
					}
				});
				if ($.fn.button) {
					button.button();
				}
			});
			uiDialogButtonPane.appendTo(self.uiDialog);
		}
	},

	_makeDraggable: function() {
		var self = this,
			options = self.options,
			doc = $(document),
			heightBeforeDrag;

		function filteredUi(ui) {
			return {
				position: ui.position,
				offset: ui.offset
			};
		}

		self.uiDialog.draggable({
			cancel: '.ui-dialog-content, .ui-dialog-titlebar-close',
			handle: '.ui-dialog-titlebar',
			containment: 'document',
			start: function(event, ui) {
				heightBeforeDrag = options.height === "auto" ? "auto" : $(this).height();
				$(this).height($(this).height()).addClass("ui-dialog-dragging");
				self._trigger('dragStart', event, filteredUi(ui));
			},
			drag: function(event, ui) {
				self._trigger('drag', event, filteredUi(ui));
			},
			stop: function(event, ui) {
				options.position = [ui.position.left - doc.scrollLeft(),
					ui.position.top - doc.scrollTop()];
				$(this).removeClass("ui-dialog-dragging").height(heightBeforeDrag);
				self._trigger('dragStop', event, filteredUi(ui));
				$.ui.dialog.overlay.resize();
			}
		});
	},

	_makeResizable: function(handles) {
		handles = (handles === undefined ? this.options.resizable : handles);
		var self = this,
			options = self.options,
			// .ui-resizable has position: relative defined in the stylesheet
			// but dialogs have to use absolute or fixed positioning
			position = self.uiDialog.css('position'),
			resizeHandles = (typeof handles === 'string' ?
				handles	:
				'n,e,s,w,se,sw,ne,nw'
			);

		function filteredUi(ui) {
			return {
				originalPosition: ui.originalPosition,
				originalSize: ui.originalSize,
				position: ui.position,
				size: ui.size
			};
		}

		self.uiDialog.resizable({
			cancel: '.ui-dialog-content',
			containment: 'document',
			alsoResize: self.element,
			maxWidth: options.maxWidth,
			maxHeight: options.maxHeight,
			minWidth: options.minWidth,
			minHeight: self._minHeight(),
			handles: resizeHandles,
			start: function(event, ui) {
				$(this).addClass("ui-dialog-resizing");
				self._trigger('resizeStart', event, filteredUi(ui));
			},
			resize: function(event, ui) {
				self._trigger('resize', event, filteredUi(ui));
			},
			stop: function(event, ui) {
				$(this).removeClass("ui-dialog-resizing");
				options.height = $(this).height();
				options.width = $(this).width();
				self._trigger('resizeStop', event, filteredUi(ui));
				$.ui.dialog.overlay.resize();
			}
		})
		.css('position', position)
		.find('.ui-resizable-se').addClass('ui-icon ui-icon-grip-diagonal-se');
	},

	_minHeight: function() {
		var options = this.options;

		if (options.height === 'auto') {
			return options.minHeight;
		} else {
			return Math.min(options.minHeight, options.height);
		}
	},

	_position: function(position) {
		var myAt = [],
			offset = [0, 0],
			isVisible;

		if (position) {
			// deep extending converts arrays to objects in jQuery <= 1.3.2 :-(
	//		if (typeof position == 'string' || $.isArray(position)) {
	//			myAt = $.isArray(position) ? position : position.split(' ');

			if (typeof position === 'string' || (typeof position === 'object' && '0' in position)) {
				myAt = position.split ? position.split(' ') : [position[0], position[1]];
				if (myAt.length === 1) {
					myAt[1] = myAt[0];
				}

				$.each(['left', 'top'], function(i, offsetPosition) {
					if (+myAt[i] === myAt[i]) {
						offset[i] = myAt[i];
						myAt[i] = offsetPosition;
					}
				});

				position = {
					my: myAt.join(" "),
					at: myAt.join(" "),
					offset: offset.join(" ")
				};
			} 

			position = $.extend({}, $.ui.dialog.prototype.options.position, position);
		} else {
			position = $.ui.dialog.prototype.options.position;
		}

		// need to show the dialog to get the actual offset in the position plugin
		isVisible = this.uiDialog.is(':visible');
		if (!isVisible) {
			this.uiDialog.show();
		}
		this.uiDialog
			// workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
			.css({ top: 0, left: 0 })
			.position($.extend({ of: window }, position));
		if (!isVisible) {
			this.uiDialog.hide();
		}
	},

	_setOptions: function( options ) {
		var self = this,
			resizableOptions = {},
			resize = false;

		$.each( options, function( key, value ) {
			self._setOption( key, value );
			
			if ( key in sizeRelatedOptions ) {
				resize = true;
			}
			if ( key in resizableRelatedOptions ) {
				resizableOptions[ key ] = value;
			}
		});

		if ( resize ) {
			this._size();
		}
		if ( this.uiDialog.is( ":data(resizable)" ) ) {
			this.uiDialog.resizable( "option", resizableOptions );
		}
	},

	_setOption: function(key, value){
		var self = this,
			uiDialog = self.uiDialog;

		switch (key) {
			//handling of deprecated beforeclose (vs beforeClose) option
			//Ticket #4669 http://dev.jqueryui.com/ticket/4669
			//TODO: remove in 1.9pre
			case "beforeclose":
				key = "beforeClose";
				break;
			case "buttons":
				self._createButtons(value);
				break;
			case "closeText":
				// ensure that we always pass a string
				self.uiDialogTitlebarCloseText.text("" + value);
				break;
			case "dialogClass":
				uiDialog
					.removeClass(self.options.dialogClass)
					.addClass(uiDialogClasses + value);
				break;
			case "disabled":
				if (value) {
					uiDialog.addClass('ui-dialog-disabled');
				} else {
					uiDialog.removeClass('ui-dialog-disabled');
				}
				break;
			case "draggable":
				var isDraggable = uiDialog.is( ":data(draggable)" );
				if ( isDraggable && !value ) {
					uiDialog.draggable( "destroy" );
				}
				
				if ( !isDraggable && value ) {
					self._makeDraggable();
				}
				break;
			case "position":
				self._position(value);
				break;
			case "resizable":
				// currently resizable, becoming non-resizable
				var isResizable = uiDialog.is( ":data(resizable)" );
				if (isResizable && !value) {
					uiDialog.resizable('destroy');
				}

				// currently resizable, changing handles
				if (isResizable && typeof value === 'string') {
					uiDialog.resizable('option', 'handles', value);
				}

				// currently non-resizable, becoming resizable
				if (!isResizable && value !== false) {
					self._makeResizable(value);
				}
				break;
			case "title":
				// convert whatever was passed in o a string, for html() to not throw up
				$(".ui-dialog-title", self.uiDialogTitlebar).html("" + (value || '&#160;'));
				break;
		}

		$.Widget.prototype._setOption.apply(self, arguments);
	},

	_size: function() {
		/* If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
		 * divs will both have width and height set, so we need to reset them
		 */
		var options = this.options,
			nonContentHeight,
			minContentHeight,
			isVisible = this.uiDialog.is( ":visible" );

		// reset content sizing
		this.element.show().css({
			width: 'auto',
			minHeight: 0,
			height: 0
		});

		if (options.minWidth > options.width) {
			options.width = options.minWidth;
		}

		// reset wrapper sizing
		// determine the height of all the non-content elements
		nonContentHeight = this.uiDialog.css({
				height: 'auto',
				width: options.width
			})
			.height();
		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
		
		if ( options.height === "auto" ) {
			// only needed for IE6 support
			if ( $.support.minHeight ) {
				this.element.css({
					minHeight: minContentHeight,
					height: "auto"
				});
			} else {
				this.uiDialog.show();
				var autoHeight = this.element.css( "height", "auto" ).height();
				if ( !isVisible ) {
					this.uiDialog.hide();
				}
				this.element.height( Math.max( autoHeight, minContentHeight ) );
			}
		} else {
			this.element.height( Math.max( options.height - nonContentHeight, 0 ) );
		}

		if (this.uiDialog.is(':data(resizable)')) {
			this.uiDialog.resizable('option', 'minHeight', this._minHeight());
		}
	}
});

$.extend($.ui.dialog, {
	version: "1.8.21",

	uuid: 0,
	maxZ: 0,

	getTitleId: function($el) {
		var id = $el.attr('id');
		if (!id) {
			this.uuid += 1;
			id = this.uuid;
		}
		return 'ui-dialog-title-' + id;
	},

	overlay: function(dialog) {
		this.$el = $.ui.dialog.overlay.create(dialog);
	}
});

$.extend($.ui.dialog.overlay, {
	instances: [],
	// reuse old instances due to IE memory leak with alpha transparency (see #5185)
	oldInstances: [],
	maxZ: 0,
	events: $.map('focus,mousedown,mouseup,keydown,keypress,click'.split(','),
		function(event) { return event + '.dialog-overlay'; }).join(' '),
	create: function(dialog) {
		if (this.instances.length === 0) {
			// prevent use of anchors and inputs
			// we use a setTimeout in case the overlay is created from an
			// event that we're going to be cancelling (see #2804)
			setTimeout(function() {
				// handle $(el).dialog().dialog('close') (see #4065)
				if ($.ui.dialog.overlay.instances.length) {
					$(document).bind($.ui.dialog.overlay.events, function(event) {
						// stop events if the z-index of the target is < the z-index of the overlay
						// we cannot return true when we don't want to cancel the event (#3523)
						if ($(event.target).zIndex() < $.ui.dialog.overlay.maxZ) {
							return false;
						}
					});
				}
			}, 1);

			// allow closing by pressing the escape key
			$(document).bind('keydown.dialog-overlay', function(event) {
				if (dialog.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
					event.keyCode === $.ui.keyCode.ESCAPE) {
					
					dialog.close(event);
					event.preventDefault();
				}
			});

			// handle window resize
			$(window).bind('resize.dialog-overlay', $.ui.dialog.overlay.resize);
		}

		var $el = (this.oldInstances.pop() || $('<div></div>').addClass('ui-widget-overlay'))
			.appendTo(document.body)
			.css({
				width: this.width(),
				height: this.height()
			});

		if ($.fn.bgiframe) {
			$el.bgiframe();
		}

		this.instances.push($el);
		return $el;
	},

	destroy: function($el) {
		var indexOf = $.inArray($el, this.instances);
		if (indexOf != -1){
			this.oldInstances.push(this.instances.splice(indexOf, 1)[0]);
		}

		if (this.instances.length === 0) {
			$([document, window]).unbind('.dialog-overlay');
		}

		$el.remove();
		
		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
		var maxZ = 0;
		$.each(this.instances, function() {
			maxZ = Math.max(maxZ, this.css('z-index'));
		});
		this.maxZ = maxZ;
	},

	height: function() {
		var scrollHeight,
			offsetHeight;
		// handle IE 6
		if ($.browser.msie && $.browser.version < 7) {
			scrollHeight = Math.max(
				document.documentElement.scrollHeight,
				document.body.scrollHeight
			);
			offsetHeight = Math.max(
				document.documentElement.offsetHeight,
				document.body.offsetHeight
			);

			if (scrollHeight < offsetHeight) {
				return $(window).height() + 'px';
			} else {
				return scrollHeight + 'px';
			}
		// handle "good" browsers
		} else {
			return $(document).height() + 'px';
		}
	},

	width: function() {
		var scrollWidth,
			offsetWidth;
		// handle IE
		if ( $.browser.msie ) {
			scrollWidth = Math.max(
				document.documentElement.scrollWidth,
				document.body.scrollWidth
			);
			offsetWidth = Math.max(
				document.documentElement.offsetWidth,
				document.body.offsetWidth
			);

			if (scrollWidth < offsetWidth) {
				return $(window).width() + 'px';
			} else {
				return scrollWidth + 'px';
			}
		// handle "good" browsers
		} else {
			return $(document).width() + 'px';
		}
	},

	resize: function() {
		/* If the dialog is draggable and the user drags it past the
		 * right edge of the window, the document becomes wider so we
		 * need to stretch the overlay. If the user then drags the
		 * dialog back to the left, the document will become narrower,
		 * so we need to shrink the overlay to the appropriate size.
		 * This is handled by shrinking the overlay before setting it
		 * to the full document size.
		 */
		var $overlays = $([]);
		$.each($.ui.dialog.overlay.instances, function() {
			$overlays = $overlays.add(this);
		});

		$overlays.css({
			width: 0,
			height: 0
		}).css({
			width: $.ui.dialog.overlay.width(),
			height: $.ui.dialog.overlay.height()
		});
	}
});

$.extend($.ui.dialog.overlay.prototype, {
	destroy: function() {
		$.ui.dialog.overlay.destroy(this.$el);
	}
});

}(jQuery));
