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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>YUI Library Examples: Menu Family: Website Left Nav With Submenus From JavaScript</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="../../assets/yui.css" >
<style>
/*Supplemental CSS for the YUI distribution*/
#custom-doc { width: 95%; min-width: 950px; }
#pagetitle {background-image: url(../../assets/bg_hd.gif);}
</style>
<link rel="stylesheet" type="text/css" href="../../assets/dpSyntaxHighlighter.css">
<!--Script and CSS includes for YUI dependencies on this page-->
<link rel="stylesheet" type="text/css" href="../../build/button/assets/skins/sam/button.css" />
<script type="text/javascript" src="../../build/yuiloader/yuiloader-min.js"></script>
<script type="text/javascript" src="../../build/event/event-min.js"></script>
<script type="text/javascript" src="../../build/dom/dom-min.js"></script>
<script type="text/javascript" src="../../build/element/element-min.js"></script>
<script type="text/javascript" src="../../build/button/button-min.js"></script>
<!--there is no custom header content for this example-->
<script type="text/javascript">
//enable passthrough of errors from YUI Event:
if ((typeof YAHOO !== "undefined") && (YAHOO.util) && (YAHOO.util.Event)) {
YAHOO.util.Event.throwErrors = true;
}
</script>
</head>
<body id="yahoo-com" class="yui-skin-sam">
<div id="custom-doc" class="yui-t2">
<div id="hd">
<div id="ygunav">
<p><em><a href="http://developer.yahoo.com/yui/">YUI Library Home</a></em></p>
<form action="http://search.yahoo.com/search" id="sitesearchform">
<input name="vs" type="hidden" value="developer.yahoo.com">
<input name="vs" type="hidden" value="yuiblog.com">
<div id="sitesearch">
<label for="searchinput">Site Search (YDN & YUIBlog): </label>
<input type="text" id="searchinput" name="p">
<input type="submit" value="Search" id="searchsubmit" class="ygbt">
</div>
</form> </div>
<div id="ygma"><a href="../../"><img src="../../assets/yui.gif" border="0" height="38"></a></div>
<div id="pagetitle"><h1>YUI Library Examples: Menu Family: Website Left Nav With Submenus From JavaScript</h1></div>
</div>
<div id="bd">
<div id="yui-main">
<div class="yui-b">
<div class="yui-ge">
<div class="yui-u first example">
<div class="promo">
<h1>Menu Family: Website Left Nav With Submenus From JavaScript</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to create a traditional, two-column page layout
(<a href="../../grids/">using Grids</a>) with a set of fly-out menu navigation
in the left column. The left navigation is created using a Menu instance that
is constructed using existing markup and enables the user to navigate to
different landing pages for each Yahoo! product category. If JavaScript is
enabled, submenus are appended to the items in the Menu, allowing the user
to skip the product landing pages and proceed directly to a given property.
</p>
</div>
<div class="example-container module newWindow">
<div id="example-canvas" class="bd">
<p class="newWindowButton yui-skin-sam"><span id="newWindowLink"><span class="first-child"><a href="leftnavfromjs_source.html" target="_blank">View example in new window.</a></span></span>
</div>
</div>
</div>
<p>
Begin by placing the markup for the two-column Grid on the page (this
example uses the <a href="../grids/grids-t1.html">Grids Preset Template 1,
160px left</a>). Next add the Menu markup for the root Menu instance to the
left column of the grid.
</p>
<textarea name="code" class="HTML" cols="60" rows="1">
<div id="productsandservices" class="yuimenu">
<div class="bd">
<ul class="first-of-type">
<li class="yuimenuitem">
<a class="yuimenuitemlabel" href="#communication">Communication</a>
</li>
<li class="yuimenuitem">
<a class="yuimenuitemlabel" href="http://shopping.yahoo.com">Shopping</a>
</li>
<li class="yuimenuitem">
<a class="yuimenuitemlabel" href="http://entertainment.yahoo.com">Entertainment</a>
</li>
<li class="yuimenuitem">
<a class="yuimenuitemlabel" href="#">Information</a>
</li>
</ul>
</div>
</div>
</textarea>
<p>
Use the <a href="../../event/#onavailable"><code>onContentReady</code>
method of the Event</a> utility to instantiate the Menu as soon as
its markup is available for scripting.
</p>
<textarea name="code" class="JScript" cols="60" rows="1">
// Initialize and render the Menu when its elements are ready to be scripted
YAHOO.util.Event.onContentReady("productsandservices", function () {
/*
Instantiate a Menu: The first argument passed to the constructor
is the id for the Menu element to be created, the second is an
object literal of configuration properties.
*/
var oMenu = new YAHOO.widget.Menu("productsandservices", {
position: "static",
hidedelay: 750,
lazyload: true });
});
</textarea>
<p>
This Menu instance makes use of several configuration properties. Setting
the "autosubmenudisplay" configuration property to "true" modifies its default
behavior so that mousing over any item in the Menu automatically triggers
the display of its submenu. The "hidedelay" configuration property is set to
"750" so each submenu automatically hides 750ms after the user's mouse has left
the menu. Lastly, the "lazyload" property is set to "true" to help
speed up the initial load time of the Menu instance by deferring the
initialization and rendering of each submenu until just before it is initially
made visible.
</p>
<p>
Submenus are added to each item in the Menu by subscribing to the
"beforeRender" event and setting the "submenu" configuration property of each
MenuBarItem instance to an object literal containing the necessary data to
create the submenu.
</p>
<textarea name="code" class="JScript" cols="60" rows="1">
/*
Define an array of object literals, each containing
the data necessary to create a submenu.
*/
var aSubmenuData = [
{
id: "communication",
itemdata: [
{ text: "360", url: "http://360.yahoo.com" },
{ text: "Alerts", url: "http://alerts.yahoo.com" },
{ text: "Avatars", url: "http://avatars.yahoo.com" },
{ text: "Groups", url: "http://groups.yahoo.com " },
{ text: "Internet Access", url: "http://promo.yahoo.com/broadband" },
{
text: "PIM",
submenu: {
id: "pim",
itemdata: [
{ text: "Yahoo! Mail", url: "http://mail.yahoo.com" },
{ text: "Yahoo! Address Book", url: "http://addressbook.yahoo.com" },
{ text: "Yahoo! Calendar", url: "http://calendar.yahoo.com" },
{ text: "Yahoo! Notepad", url: "http://notepad.yahoo.com" }
]
}
},
{ text: "Member Directory", url: "http://members.yahoo.com" },
{ text: "Messenger", url: "http://messenger.yahoo.com" },
{ text: "Mobile", url: "http://mobile.yahoo.com" },
{ text: "Flickr Photo Sharing", url: "http://www.flickr.com" },
]
},
{
id: "shopping",
itemdata: [
{ text: "Auctions", url: "http://auctions.shopping.yahoo.com" },
{ text: "Autos", url: "http://autos.yahoo.com" },
{ text: "Classifieds", url: "http://classifieds.yahoo.com" },
{ text: "Flowers & Gifts", url: "http://shopping.yahoo.com/b:Flowers%20%26%20Gifts:20146735" },
{ text: "Real Estate", url: "http://realestate.yahoo.com" },
{ text: "Travel", url: "http://travel.yahoo.com" },
{ text: "Wallet", url: "http://wallet.yahoo.com" },
{ text: "Yellow Pages", url: "http://yp.yahoo.com" }
]
},
{
id: "entertainment",
itemdata: [
{ text: "Fantasy Sports", url: "http://fantasysports.yahoo.com" },
{ text: "Games", url: "http://games.yahoo.com" },
{ text: "Kids", url: "http://www.yahooligans.com" },
{ text: "Music", url: "http://music.yahoo.com" },
{ text: "Movies", url: "http://movies.yahoo.com" },
{ text: "Radio", url: "http://music.yahoo.com/launchcast" },
{ text: "Travel", url: "http://travel.yahoo.com" },
{ text: "TV", url: "http://tv.yahoo.com" }
]
},
{
id: "information",
itemdata: [
{ text: "Downloads", url: "http://downloads.yahoo.com" },
{ text: "Finance", url: "http://finance.yahoo.com" },
{ text: "Health", url: "http://health.yahoo.com" },
{ text: "Local", url: "http://local.yahoo.com" },
{ text: "Maps & Directions", url: "http://maps.yahoo.com" },
{ text: "My Yahoo!", url: "http://my.yahoo.com" },
{ text: "News", url: "http://news.yahoo.com" },
{ text: "Search", url: "http://search.yahoo.com" },
{ text: "Small Business", url: "http://smallbusiness.yahoo.com" },
{ text: "Weather", url: "http://weather.yahoo.com" }
]
}
];
// Subscribe to the Menu instance's "beforeRender" event
oMenu.subscribe("beforeRender", function () {
if (this.getRoot() == this) {
this.getItem(0).cfg.setProperty("submenu", aSubmenuData[0]);
this.getItem(1).cfg.setProperty("submenu", aSubmenuData[1]);
this.getItem(2).cfg.setProperty("submenu", aSubmenuData[2]);
this.getItem(3).cfg.setProperty("submenu", aSubmenuData[3]);
}
});
/*
Call the "render" method with no arguments since the
markup for this Menu instance is already exists in the page.
*/
oMenu.render();
</textarea>
<p>
Finally, it is necessary to set the "position" CSS property of the root Menu
instance's element (<code><div id="#productsandservices"></code>) to
"static" to match that of the "position" configuration property.
</p>
<textarea name="code" class="CSS" cols="60" rows="1">
#productsandservices {
position: static;
}
</textarea>
<h2>Configuration for This Example</h2>
<p>You can load the necessary JavaScript and CSS for this example from Yahoo's servers. <a href="http://developer.yahoo.com/yui/articles/hosting/?&MIN#configure">Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured</a>.</p>
</div>
<div class="yui-u">
<div id="examples">
<h3 class='firstContent'>Menu Family Examples:</h3>
<div id="exampleToc">
<ul>
<li><a href='../menu/example01.html'>Basic Menu From Markup</a></li><li><a href='../menu/example02.html'>Basic Menu From JavaScript</a></li><li><a href='../menu/example03.html'>Grouped Menu Items Using Markup</a></li><li><a href='../menu/example04.html'>Grouped Menu Items Using JavaScript</a></li><li><a href='../menu/example05.html'>Grouped Menu Items With Titles From Markup</a></li><li><a href='../menu/example06.html'>Grouped Menu Items With Titles From JavaScript</a></li><li><a href='../menu/example07.html'>Multi-tiered Menu From Markup</a></li><li><a href='../menu/example08.html'>Multi-tiered Menu From JavaScript</a></li><li><a href='../menu/example09.html'>Handling Menu Click Events</a></li><li><a href='../menu/example10.html'>Listening For Menu Events</a></li><li><a href='../menu/example11.html'>MenuItem Configuration Properties</a></li><li><a href='../menu/example12.html'>Setting Menu Configuration Properties At Runtime</a></li><li><a href='../menu/leftnavfrommarkup.html'>Website Left Nav With Submenus Built From Markup</a></li><li class='selected'><a href='../menu/leftnavfromjs.html'>Website Left Nav With Submenus From JavaScript</a></li><li><a href='../menu/topnavfrommarkup.html'>Website Top Nav With Submenus Built From Markup</a></li><li><a href='../menu/topnavfromjs.html'>Website Top Nav With Submenus From JavaScript</a></li><li><a href='../menu/leftnavfrommarkupwithanim.html'>Website Left Nav Using Animation With Submenus Built From Markup</a></li><li><a href='../menu/leftnavfromjswithanim.html'>Website Left Nav Using Animation With Submenus From JavaScript</a></li><li><a href='../menu/topnavfrommarkupwithanim.html'>Website Top Nav Using Animation With Submenus Built From Markup</a></li><li><a href='../menu/topnavfromjswithanim.html'>Website Top Nav Using Animation With Submenus From JavaScript</a></li><li><a href='../menu/contextmenu.html'>Context Menu</a></li><li><a href='../menu/tablecontextmenu.html'>Adding A Context Menu To A Table</a></li><li><a href='../menu/treeviewcontextmenu.html'>Adding A Context Menu To A TreeView</a></li><li><a href='../menu/programsmenu.html'>OS-Style Programs Menu</a></li><li><a href='../menu/applicationmenubar.html'>Application Menubar</a></li><li><a href='../menu/menuwaiaria.html'>Using the Menu ARIA Plugin</a></li><li><a href='../button/button-menu-swap.html'>Replacing the content of a Button's Menu (included with examples for Button Control)</a></li><li><a href='../button/button-menu-select.html'>Using A Menu Button To Replace A <select> Element (included with examples for Button Control)</a></li><li><a href='../button/button-ariaplugin.html'>Using the Button ARIA Plugin (included with examples for Button Control)</a></li><li><a href='../datatable/dt_contextmenu.html'>Context Menu Integration (included with examples for DataTable Control)</a></li><li><a href='../button/btn_example07.html'>Menu Buttons (included with examples for Button Control)</a></li><li><a href='../button/btn_example08.html'>Split Buttons (included with examples for Button Control)</a></li><li><a href='../button/btn_example11.html'>Color Picker Button (included with examples for Button Control)</a></li><li><a href='../button/btn_example12.html'>Fixed Width Menu Button (included with examples for Button Control)</a></li><li><a href='../button/btn_example14.html'>Slider Button (included with examples for Button Control)</a></li><li><a href='../layout/menu_layout.html'>Layout with Menu Controls (included with examples for Layout Manager)</a></li><li><a href='../profilerviewer/pv-api.html'>Using the ProfilerViewer API while Profiling the YUI Menu Control (included with examples for ProfilerViewer Control)</a></li> </ul>
</div>
</div>
<div id="module">
<h3>More Menu Family Resources:</h3>
<ul>
<li><a href="http://developer.yahoo.com/yui/menu/">User's Guide</a> (external)</li>
<li><a href="../../docs/module_menu.html">API Documentation</a></li>
<li><a href="http://yuiblog.com/assets/pdf/cheatsheets/menu.pdf">Cheat Sheet PDF</a> (external)</li></ul>
</div>
</div>
</div>
</div>
</div>
<div class="yui-b" id="tocWrapper">
<!-- TABLE OF CONTENTS -->
<div id="toc">
<ul>
<li class="sect first">Yahoo! UI Library</li><li class="item"><a title="The Yahoo! User Interface Library (YUI)" href="http://developer.yahoo.com/yui/">Home (external)</a></li><li class="item"><a title="The Yahoo! User Interface Blog" href="http://yuiblog.com">YUIBlog (external)</a></li><li class="item"><a title="YUILibrary.com hosts the YUI community forums" href="http://yuilibrary.com/forum/">YUI Discussion Forum (external)</a></li><li class="item"><a title="The YUI Library source can be checked out from GitHub" href="http://github.com/yui/">YUI on GitHub</a></li><li class="item"><a title="Instantly searchable API documentation for the entire YUI library." href="../../docs/index.html">API Documentation</a></li><li class="item"><a title="Examples of every YUI utility and control in action" href="../../examples/">Functional Examples</a></li><li class="item"><a title="Videos and podcasts from the YUI Team and from the Yahoo! frontend engineering community." href="http://developer.yahoo.com/yui/theater/">YUI Theater (external)</a></li><li class="item"><a title="YUI is free and open, offered under a BSD license." href="http://developer.yahoo.com/yui/license.html">YUI License (external)</a></li><li class="sect">YUI Functional Examples</li><li class="item"><a title="The YUI Animation Utility - Functional Examples" href="../../examples/animation/index.html">Animation</a></li><li class="item"><a title="The YUI AutoComplete Control - Functional Examples" href="../../examples/autocomplete/index.html">AutoComplete</a></li><li class="item"><a title="The YUI Browser History Manager - Functional Examples" href="../../examples/history/index.html">Browser History Manager</a></li><li class="item"><a title="The YUI Button Control - Functional Examples" href="../../examples/button/index.html">Button</a></li><li class="item"><a title="The YUI Calendar Control - Functional Examples" href="../../examples/calendar/index.html">Calendar</a></li><li class="item"><a title="The YUI Carousel Control - Functional Examples" href="../../examples/carousel/index.html">Carousel</a></li><li class="item"><a title="The YUI Charts Control - Functional Examples" href="../../examples/charts/index.html">Charts</a></li><li class="item"><a title="The YUI Color Picker Control - Functional Examples" href="../../examples/colorpicker/index.html">Color Picker</a></li><li class="item"><a title="The YUI Cookie Utility - Functional Examples" href="../../examples/cookie/index.html">Cookie</a></li><li class="item"><a title="The YUI Connection Manager (AJAX) - Functional Examples" href="../../examples/connection/index.html">Connection Manager</a></li><li class="item"><a title="The YUI Container Family (Module, Overlay, Tooltip, Panel, Dialog, SimpleDialog) - Functional Examples" href="../../examples/container/index.html">Container</a></li><li class="item"><a title="The YUI DataTable Control - Functional Examples" href="../../examples/datatable/index.html">DataTable</a></li><li class="item"><a title="The YUI Dom Collection - Functional Examples" href="../../examples/dom/index.html">Dom</a></li><li class="item"><a title="The YUI Drag & Drop Utility - Functional Examples" href="../../examples/dragdrop/index.html">Drag & Drop</a></li><li class="item"><a title="The YUI Event Utility - Functional Examples" href="../../examples/event/index.html">Event</a></li><li class="item"><a title="The YUI Get Utility - Functional Examples" href="../../examples/get/index.html">Get</a></li><li class="item"><a title="The YUI ImageCropper Control - Functional Examples" href="../../examples/imagecropper/index.html">ImageCropper</a></li><li class="item"><a title="The YUI ImageLoader Utility - Functional Examples" href="../../examples/imageloader/index.html">ImageLoader</a></li><li class="item"><a title="The YUI JSON Utility - Functional Examples" href="../../examples/json/index.html">JSON</a></li><li class="item"><a title="The YUI Layout Manager - Functional Examples" href="../../examples/layout/index.html">Layout Manager</a></li><li class="item"><a title="The YUI Logger Control - Functional Examples" href="../../examples/logger/index.html">Logger</a></li><li class="selected "><a title="The YUI Menu Control - Functional Examples" href="../../examples/menu/index.html">Menu</a></li><li class="item"><a title="The YUI Paginator - Functional Examples" href="../../examples/paginator/index.html">Paginator</a></li><li class="item"><a title="The YUI Profiler Utility - Functional Examples" href="../../examples/profiler/index.html">Profiler</a></li><li class="item"><a title="The YUI ProfileViewer Control - Functional Examples" href="../../examples/profilerviewer/index.html">ProfilerViewer</a></li><li class="item"><a title="The YUI ProgressBar Control - Functional Examples" href="../../examples/progressbar/index.html">ProgressBar</a></li><li class="item"><a title="The YUI Resize Utility - Functional Examples" href="../../examples/resize/index.html">Resize</a></li><li class="item"><a title="The YUI Rich Text Editor - Functional Examples" href="../../examples/editor/index.html">Rich Text Editor</a></li><li class="item"><a title="The YUI Selector Utility - Functional Examples" href="../../examples/selector/index.html">Selector</a></li><li class="item"><a title="The YUI Slider Control - Functional Examples" href="../../examples/slider/index.html">Slider</a></li><li class="item"><a title="The YUI Storage Utility - Functional Examples" href="../../examples/storage/index.html">Storage</a></li><li class="item"><a title="The YUI SWF Utility - Functional Examples" href="../../examples/swf/index.html">SWF</a></li><li class="item"><a title="The YUI SWFStore Utility - 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Functional Examples" href="../../examples/reset/index.html">Reset CSS</a></li><li class="item"><a title="YUI Base CSS - Functional Examples" href="../../examples/base/index.html">Base CSS</a></li><li class="item"><a title="YUI Fonts CSS - Functional Examples" href="../../examples/fonts/index.html">Fonts CSS</a></li><li class="item"><a title="YUI Grids CSS - Functional Examples" href="../../examples/grids/index.html">Grids CSS</a></li><li class="sect">YUI Articles on the YUI Website</li><li class="item"><a title="Answers to Frequently Asked Questions about the YUI Library" href="http://developer.yahoo.com/yui/articles/faq/">YUI FAQ (external)</a></li><li class="item"><a title="Yahoo!'s philosophy of Graded Browser Support" href="http://developer.yahoo.com/yui/articles/gbs/">Graded Browser Support (external)</a></li><li class="item"><a title="Reporting Bugs and Making Feature Requests for YUI Components" href="http://developer.yahoo.com/yui/articles/reportingbugs/">Bug Reports/Feature Requests (external)</a></li><li class="item"><a title="Serve YUI source files from Yahoo! -- free, fast, and simple" href="http://developer.yahoo.com/yui/articles/hosting/">Serving YUI Files from Yahoo! (external)</a></li><li class="item"><a title="Best practices for working with web services while protecting user privacy" href="http://developer.yahoo.com/security/">Security Best Practices (external)</a></li></ul>
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