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284 lines
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HTML
284 lines
23 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>YUI Library Examples: Container Family: Creating a Modal "Loading" Panel</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<link rel="stylesheet" type="text/css" href="../../assets/yui.css" >
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<style>
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/*Supplemental CSS for the YUI distribution*/
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#custom-doc { width: 95%; min-width: 950px; }
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#pagetitle {background-image: url(../../assets/bg_hd.gif);}
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</style>
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<link rel="stylesheet" type="text/css" href="../../assets/dpSyntaxHighlighter.css">
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<!--Script and CSS includes for YUI dependencies on this page-->
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<link rel="stylesheet" type="text/css" href="../../build/logger/assets/skins/sam/logger.css" />
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<link rel="stylesheet" type="text/css" href="../../build/container/assets/skins/sam/container.css" />
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<link rel="stylesheet" type="text/css" href="../../build/button/assets/skins/sam/button.css" />
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<script type="text/javascript" src="../../build/yuiloader/yuiloader-min.js"></script>
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<script type="text/javascript" src="../../build/event/event-min.js"></script>
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<script type="text/javascript" src="../../build/button/button-min.js"></script>
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<!--there is no custom header content for this example-->
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<script type="text/javascript">
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//enable passthrough of errors from YUI Event:
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if ((typeof YAHOO !== "undefined") && (YAHOO.util) && (YAHOO.util.Event)) {
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YAHOO.util.Event.throwErrors = true;
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}
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</script>
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</head>
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<body id="yahoo-com" class="yui-skin-sam">
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<div id="custom-doc" class="yui-t2">
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<div id="hd">
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<div id="ygunav">
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<p><em><a href="http://developer.yahoo.com/yui/">YUI Library Home</a></em></p>
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<form action="http://search.yahoo.com/search" id="sitesearchform">
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<input name="vs" type="hidden" value="developer.yahoo.com">
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<input name="vs" type="hidden" value="yuiblog.com">
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<div id="sitesearch">
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<label for="searchinput">Site Search (YDN & YUIBlog): </label>
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<input type="text" id="searchinput" name="p">
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<input type="submit" value="Search" id="searchsubmit" class="ygbt">
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</div>
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</form> </div>
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<div id="ygma"><a href="../../"><img src="../../assets/yui.gif" border="0" height="38"></a></div>
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<div id="pagetitle"><h1>YUI Library Examples: Container Family: Creating a Modal "Loading" Panel</h1></div>
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</div>
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<div id="bd">
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<div id="yui-main">
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<div class="yui-b">
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<div class="yui-ge">
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<div class="yui-u first example">
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<div class="promo">
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<h1>Container Family: Creating a Modal "Loading" Panel</h1>
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<div class="exampleIntro">
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<p>A common use case for the Panel Control involves using it to display "please wait" text and images to indicate that the application is busy doing something. As this page loads, a modal "please wait"-style Panel Control instance appears and the remainder of the page dims. When the content for the container is loaded (consisting of lorem ipsum text), the panel and its modaliy mask fade away and the page returns to a normal interactive state.</p>
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</div>
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<div class="example-container module ">
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<div class="hd exampleHd">
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<p class="newWindowButton yui-skin-sam"><!--<span id="newWindowLinkx"><span class="first-child">--><a href="panel-loading_clean.html" target="_blank">View example in new window.</a><!--</span></span>-->
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</div> <div id="example-canvas" class="bd">
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<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
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<div id="content"></div>
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<script type="text/javascript">
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YAHOO.namespace("example.container");
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function init() {
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var content = document.getElementById("content");
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content.innerHTML = "";
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if (!YAHOO.example.container.wait) {
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// Initialize the temporary Panel to display while waiting for external content to load
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YAHOO.example.container.wait =
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new YAHOO.widget.Panel("wait",
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{ width: "240px",
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fixedcenter: true,
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close: false,
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draggable: false,
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zindex:4,
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modal: true,
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visible: false
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}
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);
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YAHOO.example.container.wait.setHeader("Loading, please wait...");
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YAHOO.example.container.wait.setBody("<img src=\"http://l.yimg.com/a/i/us/per/gr/gp/rel_interstitial_loading.gif\"/>");
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YAHOO.example.container.wait.render(document.body);
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}
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// Define the callback object for Connection Manager that will set the body of our content area when the content has loaded
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var callback = {
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success : function(o) {
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content.innerHTML = o.responseText;
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content.style.visibility = "visible";
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YAHOO.example.container.wait.hide();
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},
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failure : function(o) {
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content.innerHTML = o.responseText;
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content.style.visibility = "visible";
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content.innerHTML = "CONNECTION FAILED!";
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YAHOO.example.container.wait.hide();
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}
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}
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// Show the Panel
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YAHOO.example.container.wait.show();
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// Connect to our data source and load the data
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var conn = YAHOO.util.Connect.asyncRequest("GET", "assets/somedata.php?r=" + new Date().getTime(), callback);
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}
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YAHOO.util.Event.on("panelbutton", "click", init);
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</script>
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<button id="panelbutton">Show Panel</button>
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<!--END SOURCE CODE FOR EXAMPLE =============================== -->
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</div>
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</div>
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</div>
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<h2 class="first">Using Panel as a Modal "Please Wait" or "Loading" Indicator</h2>
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<p>The Panel can be used to display a temporary message is automatically dismissed when a task has completed. In this tutorial, we will build a Panel that will be displayed while content is being loaded from an external data source, and will be dismissed when the content has finished loading.</p>
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<p>We will start by instantiating a Panel and configuring it to display an image and some text in its body. We set it's zindex to be higher than other positioned elements on the page and enable the modal property, so that the panel is displayed with a modal mask:</p>
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<textarea name="code" class="JScript" cols="60" rows="1">
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// Initialize the temporary Panel to display while waiting for external content to load
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YAHOO.example.container.wait =
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new YAHOO.widget.Panel("wait",
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{ width:"240px",
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fixedcenter:true,
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close:false,
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draggable:false,
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zindex:4,
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modal:true,
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visible:false
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}
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);
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YAHOO.example.container.wait.setHeader("Loading, please wait...");
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YAHOO.example.container.wait.setBody('<img src="http://l.yimg.com/a/i/us/per/gr/gp/rel_interstitial_loading.gif" />');
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YAHOO.example.container.wait.render(document.body);
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</textarea>
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<p>We will also need to place a container for the content that will be dynamically loaded:</p>
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<textarea name="code" class="HTML" cols="60" rows="1">
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<div id="content"></div>
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</textarea>
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<p>Finally, we will set up our Connection object and configure its callback to load the content into the container element and close the Panel after the content has finished loading. If the connection is successful, the content will be loaded into the container and the Panel will be hidden. If the connection fails, an error message will be displayed in the container.</p>
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<textarea name="code" class="JScript" cols="60" rows="1">// Define the callback object for Connection Manager that will set the body of our content area when the content has loaded
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var content = document.getElementById("content");
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var callback = {
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success : function(o) {
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content.innerHTML = o.responseText;
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content.style.visibility = "visible";
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YAHOO.example.container.wait.hide();
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},
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failure : function(o) {
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content.innerHTML = o.responseText;
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content.style.visibility = "visible";
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content.innerHTML = "CONNECTION FAILED!";
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YAHOO.example.container.wait.hide();
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}
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}
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// Show the Panel
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YAHOO.example.container.wait.show();
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// Connect to our data source and load the data
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var conn = YAHOO.util.Connect.asyncRequest("GET", "../assets/somedata.php?r=" + new Date().getTime(), callback);
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</textarea>
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<h2>Configuration for This Example</h2>
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<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/?connection&animation&dragdrop&container&MIN#configure">Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured</a>.</p>
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</div>
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<div class="yui-u">
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<div id="loggerModule" class="yui-skin-sam">
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<h3 class="firstContent">YUI Logger Output:</h3>
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<div id="loggerDiv"></div>
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<div id="loggerGloss">
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<p><strong>Note:</strong> You are viewing this example in debug mode with logging enabled. This can significantly slow performance.</p>
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<p class="loggerButton"><span id="loggerLink"><span class="first-child"><a href="panel-loading.html">Reload with logging<br />and debugging disabled.</a></span></span></p>
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</div>
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</div>
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<div id="examples">
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<h3>Container Family Examples:</h3>
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<div id="exampleToc">
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<ul>
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<li><a href='../container/module.html'>The Module Control</a></li><li><a href='../container/overlay.html'>Creating and Positioning an Overlay</a></li><li><a href='../container/tooltip.html'>Simple Tooltip Example</a></li><li><a href='../container/tooltip-multi.html'>One Tooltip, Many Context Elements</a></li><li><a href='../container/panel.html'>Simple Panel Example</a></li><li><a href='../container/panelskin1.html'>Skinning a Panel with Custom CSS: Introduction</a></li><li><a href='../container/panelskin2.html'>Skinning a Panel with Custom CSS: Advanced</a></li><li class='selected'><a href='../container/panel-loading.html'>Creating a Modal "Loading" Panel</a></li><li><a href='../container/panel-resize.html'>Creating a Resizable Panel</a></li><li><a href='../container/dialog-quickstart.html'>Dialog Quickstart Example</a></li><li><a href='../container/simpledialog-quickstart.html'>SimpleDialog Quickstart Example</a></li><li><a href='../container/container-effect.html'>Using ContainerEffect Transitions</a></li><li><a href='../container/overlaymanager.html'>Using the Overlay Manager to Manage Multiple Panels</a></li><li><a href='../container/keylistener.html'>Implementing Container Keyboard Shortcuts with KeyListener</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='../container/container-ariaplugin.html'>Using the Container ARIA Plugin</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-menu-swap.html'>Replacing the content of a Button's Menu (included with examples for Button Control)</a></li><li><a href='../colorpicker/colorpicker-dialog-from-script.html'>Example of Color Picker Built in a Dialog via JavaScript (included with examples for Color Picker Control)</a></li><li><a href='../layout/panel_layout.html'>Layout inside a resizable Panel (included with examples for Layout Manager)</a></li><li><a href='../editor/dialog_editor.html'>Editor in a Dialog Control (included with examples for Rich Text Editor)</a></li><li><a href='../button/btn_example07.html'>Menu Buttons (included with examples for Button Control)</a></li><li><a href='../calendar/calcontainer.html'>Popup Calendar - Advanced (included with examples for Calendar Control)</a></li><li><a href='../datatable/dt_colshowhide.html'>Showing, Hiding, and Reordering Columns. (included with examples for DataTable 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_example09.html'>Simple Calendar Menu Button (included with examples for Button Control)</a></li><li><a href='../button/btn_example10.html'>Calendar Menu Button with Date on Button Face (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='../menu/programsmenu.html'>OS-Style Programs Menu (included with examples for Menu Family)</a></li><li><a href='../menu/applicationmenubar.html'>Application Menubar (included with examples for Menu Family)</a></li><li><a href='../button/btn_example14.html'>Slider Button (included with examples for Button Control)</a></li><li><a href='../layout/adv_layout.html'>Complex Application (included with examples for Layout Manager)</a></li> </ul>
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</div>
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</div>
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<div id="module">
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<h3>More Container Family Resources:</h3>
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<ul>
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<li><a href="http://developer.yahoo.com/yui/container/">User's Guide</a> (external)</li>
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<li><a href="../../docs/module_container.html">API Documentation</a></li>
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<li><a href="http://yuiblog.com/assets/pdf/cheatsheets/container.pdf">Cheat Sheet PDF</a> (external)</li></ul>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="yui-b" id="tocWrapper">
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<!-- TABLE OF CONTENTS -->
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<div id="toc">
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<ul>
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<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="selected "><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="item"><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 - Functional Examples" href="../../examples/swfstore/index.html">SWFStore</a></li><li class="item"><a title="The YUI Stylesheet Utility - Functional Examples" href="../../examples/stylesheet/index.html">Stylesheet</a></li><li class="item"><a title="The YUI TabView Control - Functional Examples" href="../../examples/tabview/index.html">TabView</a></li><li class="item"><a title="The YUI TreeView Control - Functional Examples" href="../../examples/treeview/index.html">TreeView</a></li><li class="item"><a title="The YUI Uploader Utility - Functional Examples" href="../../examples/uploader/index.html">Uploader (experimental)</a></li><li class="item"><a title="The YUI YAHOO Global Object - Functional Examples" href="../../examples/yahoo/index.html">YAHOO Global Object</a></li><li class="item"><a title="The YUI Loader Utility - Functional Examples" href="../../examples/yuiloader/index.html">YUI Loader</a></li><li class="item"><a title="The YUI Test Utility - Functional Examples" href="../../examples/yuitest/index.html">YUI Test</a></li><li class="item"><a title="YUI Reset CSS - 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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</div>
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</div>
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</div><!--closes bd-->
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<div id="ft">
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<p class="first">Copyright © 2010 Yahoo! Inc. All rights reserved.</p>
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<p><a href="http://privacy.yahoo.com/privacy/us/devel/index.html">Privacy Policy</a> -
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<a href="http://docs.yahoo.com/info/terms/">Terms of Service</a> -
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<a href="http://docs.yahoo.com/info/copyright/copyright.html">Copyright Policy</a> -
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<a href="http://careers.yahoo.com/">Job Openings</a></p>
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</div>
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</div>
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<script src="../../assets/syntax.js"></script>
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<script src="../../assets/dpSyntaxHighlighter.js"></script>
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<script language="javascript">
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dp.SyntaxHighlighter.HighlightAll('code');
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</script>
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<script src='../../assets/YUIexamples.js'></script>
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</body>
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</html>
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