459 lines
20 KiB
HTML
459 lines
20 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>API: event YAHOO.util.Subscriber (YUI Library)</title>
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<link rel="stylesheet" type="text/css" href="assets/api.css">
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<script type="text/javascript" src="assets/api-js"></script>
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<script type="text/javascript" src="assets/ac-js"></script>
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</head>
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<body id="yahoo-com">
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<div id="doc3" class="yui-t2">
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<div id="hd">
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<a href="http://developer.yahoo.com/yui/"><h1>Yahoo! UI Library</h1></a>
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<h3>Event Utility <span class="subtitle">2.5.0</span></h3>
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<p>
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<a href="./index.html">Yahoo! UI Library</a>
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> <a href="./module_event.html">event</a>
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> YAHOO.util.Subscriber
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</p>
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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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<form name="yui-classopts-form">
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<span id="classopts"><input type="checkbox" name="showprivate" id="showprivate" /> Show Private</span>
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<span id="classopts"><input type="checkbox" name="showprotected" id="showprotected" /> Show Protected</span>
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</form>
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<h2>
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Class <b>YAHOO.util.Subscriber</b>
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<span class="extends">
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</span>
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<span class="extends">
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</span>
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</code>
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</h2>
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<!-- class tree goes here -->
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<div class="summary description">
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Stores the subscriber information to be used when the event fires.
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</div>
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<div class="section constructor details">
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<h3 id="constructor">Constructor</h3>
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<div class="content">
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<div class="detail">
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<strong>YAHOO.util.Subscriber</strong>
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<code>
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(
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fn
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,
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obj
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,
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override
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)
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</code>
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<div class="description">
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<dl>
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<dt>Parameters:</dt>
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<dd>
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<code>fn
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<Function>
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</code>
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The function to execute
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</dd>
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<dd>
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<code>obj
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<Object>
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</code>
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An object to be passed along when the event fires
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</dd>
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<dd>
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<code>override
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<boolean>
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</code>
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If true, the obj passed in becomes the execution
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scope of the listener
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</dd>
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</dl>
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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="section field details">
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<h3 id="properties">Properties</h3>
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<div class="content">
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<div class="">
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<h4><a name="fn">fn</a>
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<code>- function</code>
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</h4>
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<div class="detail">
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<div class="description">
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The callback that will be execute when the event fires
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</div>
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</div>
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<hr />
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</div>
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<div class="">
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<h4><a name="obj">obj</a>
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<code>- object</code>
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</h4>
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<div class="detail">
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<div class="description">
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An optional custom object that will passed to the callback when
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the event fires
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</div>
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</div>
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<hr />
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</div>
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<div class="">
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<h4><a name="override">override</a>
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<code>- boolean|object</code>
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</h4>
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<div class="detail">
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<div class="description">
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The default execution scope for the event listener is defined when the
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event is created (usually the object which contains the event).
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By setting override to true, the execution scope becomes the custom
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object passed in by the subscriber. If override is an object, that
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object becomes the scope.
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</div>
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</div>
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<hr />
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</div>
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</div>
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</div>
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<div class="section method details">
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<h3 id="methods">Methods</h3>
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<div class="content">
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<div class="">
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<h4>
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<a name="contains">contains</a></h4>
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<div class="detail">
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<code>
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boolean
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<strong>contains</strong>
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(
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fn
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,
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obj
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)
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</code>
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<div class="description">
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Returns true if the fn and obj match this objects properties.
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Used by the unsubscribe method to match the right subscriber.
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</div>
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<div class="description">
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<dl>
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<dt>Parameters:</dt>
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<dd>
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<code>fn <Function></code>
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the function to execute
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</dd>
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<dd>
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<code>obj <Object></code>
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an object to be passed along when the event fires
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</dd>
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</dl>
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<dl>
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<dt>Returns:
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<code>
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boolean
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</code></dt>
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<dd>true if the supplied arguments match this
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subscriber's signature.</dd>
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</dl>
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</div>
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</div>
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<hr />
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</div>
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<div class="">
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<h4>
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<a name="getScope">getScope</a></h4>
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<div class="detail">
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<code>
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void
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<strong>getScope</strong>
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(
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defaultScope
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)
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</code>
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<div class="description">
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Returns the execution scope for this listener. If override was set to true
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the custom obj will be the scope. If override is an object, that is the
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scope, otherwise the default scope will be used.
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</div>
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<div class="description">
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<dl>
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<dt>Parameters:</dt>
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<dd>
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<code>defaultScope <Object></code>
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the scope to use if this listener does not
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override it.
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</dd>
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</dl>
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<dl>
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<dt>Returns:
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<code>
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void
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</code></dt>
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<dd></dd>
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</dl>
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</div>
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</div>
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<hr />
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</div>
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<div class="">
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<h4>
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<a name="toString">toString</a></h4>
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<div class="detail">
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<code>
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void
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<strong>toString</strong>
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(
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)
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</code>
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<div class="description">
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</div>
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<div class="description">
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<dl>
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<dt>Returns:
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<code>
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void
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</code></dt>
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<dd></dd>
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</dl>
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</div>
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</div>
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<hr />
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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">
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<div class="nav">
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<div class="module">
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<h4>Modules</h4>
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<ul class="content">
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<li class=""><a href="module_animation.html">animation</a></li>
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<li class=""><a href="module_autocomplete.html">autocomplete</a></li>
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<li class=""><a href="module_button.html">button</a></li>
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<li class=""><a href="module_calendar.html">calendar</a></li>
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<li class=""><a href="module_charts.html">charts</a></li>
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<li class=""><a href="module_colorpicker.html">colorpicker</a></li>
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<li class=""><a href="module_connection.html">connection</a></li>
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<li class=""><a href="module_container.html">container</a></li>
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<li class=""><a href="module_cookie.html">cookie</a></li>
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<li class=""><a href="module_datasource.html">datasource</a></li>
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<li class=""><a href="module_datatable.html">datatable</a></li>
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<li class=""><a href="module_dom.html">dom</a></li>
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<li class=""><a href="module_dragdrop.html">dragdrop</a></li>
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<li class=""><a href="module_editor.html">editor</a></li>
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<li class=""><a href="module_element.html">element</a></li>
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<li class="selected"><a href="module_event.html">event</a></li>
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<li class=""><a href="module_get.html">get</a></li>
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<li class=""><a href="module_history.html">history</a></li>
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<li class=""><a href="module_imagecropper.html">imagecropper</a></li>
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<li class=""><a href="module_imageloader.html">imageloader</a></li>
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<li class=""><a href="module_json.html">json</a></li>
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<li class=""><a href="module_layout.html">layout</a></li>
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<li class=""><a href="module_logger.html">logger</a></li>
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<li class=""><a href="module_menu.html">menu</a></li>
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<li class=""><a href="module_profiler.html">profiler</a></li>
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<li class=""><a href="module_profilerviewer.html">profilerviewer</a></li>
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<li class=""><a href="module_resize.html">resize</a></li>
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<li class=""><a href="module_selector.html">selector</a></li>
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<li class=""><a href="module_slider.html">slider</a></li>
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<li class=""><a href="module_tabview.html">tabview</a></li>
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<li class=""><a href="module_treeview.html">treeview</a></li>
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<li class=""><a href="module_uploader.html">uploader</a></li>
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<li class=""><a href="module_yahoo.html">yahoo</a></li>
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<li class=""><a href="module_yuiloader.html">yuiloader</a></li>
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<li class=""><a href="module_yuitest.html">yuitest</a></li>
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</ul>
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</div>
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<div class="module">
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<h4>Classes</h4>
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<ul class="content">
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<li class=""><a href="YAHOO.util.CustomEvent.html">YAHOO.util.CustomEvent</a></li>
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<li class=""><a href="YAHOO.util.Event.html">YAHOO.util.Event</a></li>
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<li class=""><a href="YAHOO.util.EventProvider.html">YAHOO.util.EventProvider</a></li>
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<li class=""><a href="YAHOO.util.KeyListener.html">YAHOO.util.KeyListener</a></li>
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<li class="selected"><a href="YAHOO.util.Subscriber.html">YAHOO.util.Subscriber</a></li>
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</ul>
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</div>
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<div class="module">
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<h4>Files</h4>
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<ul class="content">
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<li class=""><a href="CustomEvent.js.html">CustomEvent.js</a></li>
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<li class=""><a href="Event.js.html">Event.js</a></li>
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<li class=""><a href="EventProvider.js.html">EventProvider.js</a></li>
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<li class=""><a href="KeyListener.js.html">KeyListener.js</a></li>
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</ul>
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</div>
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<div class="module">
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<h4>Properties</h4>
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<ul class="content">
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<li class=""><a href="#fn">fn</a>
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<!--<code><boolean|object></code>-->
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</li>
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<li class=""><a href="#obj">obj</a>
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<!--<code><boolean|object></code>-->
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</li>
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<li class=""><a href="#override">override</a>
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<!--<code><boolean|object></code>-->
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</li>
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</ul>
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</div>
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<div class="module">
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<h4>Methods</h4>
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<ul class="content">
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<li class=""><!--<code>boolean</code>-->
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<a href="#contains">contains</a>
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</li>
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<li class=""><!--<code>void</code>-->
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<a href="#getScope">getScope</a>
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</li>
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<li class=""><!--<code>void</code>-->
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<a href="#toString">toString</a>
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</li>
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</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 id="ft">
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<hr />
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Copyright © 2007 Yahoo! Inc. All rights reserved.
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</div>
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</div>
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</body>
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</html>
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