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    <p>Use jQuery (just change the selector $("a") to be more specific, using an id or a class):</p> <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt; &lt;title&gt;SOMETITLE&lt;/title&gt; &lt;script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(function() { $("a").each(function() { $(this).attr("href", $(this).attr("href").replace("XXX", $("html head title").text()) ); }); }); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;a href="http://www.facebook.com/sharer.php?u=&lt;?php echo $url ?&gt;&amp;t=XXX"&gt;click&lt;/a&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>For the Update 2, change the script element:</p> <pre><code>&lt;script type="text/javascript"&gt; $('#block-header-facebook').each(function() { $(this).attr('href', $(this).attr('href').replace("link", document.title)); }); &lt;/script&gt; </code></pre> <p>By the way I do too recommend using the Ralph's server approach (use this only if you need to do it on the client).</p> <p><strong>Added Recommendation (See Ralph comment)</strong></p> <p>Change the a-tag and script to:</p> <pre><code>&lt;a id="block-header-facebook" href="http://www.facebook.com/sharer.php?u=&lt;?php echo $url ?&gt;"&gt; &lt;script type="text/javascript"&gt; $('#block-header-facebook').each(function() { $(this).attr('href', $(this).attr('href') + "&amp;amp;t=" + escape(document.title)); }); &lt;/script&gt; </code></pre> <p>Less error-prone code, and I will work the same.</p>
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    1. USAlex LE
    1. USAlex LE
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    1. COYour code works, but I change to my code, it's not work, please see my updated 2
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      1. USCharles Yeung
    2. COok, your code works, thanks so much. Could you advise what is the meaning by using each()?
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      1. USCharles Yeung
    3. COOk, all $("..") selectors return a collection of items, by using .each(function() { .. } ), you put some logic to each element in the collection and you access the item with $(this), tough you not strictly needed here (since it will return only one element) I use it also to not repeat the $('#block-header-facebook') selector. See documentation: http://api.jquery.com/jQuery.each/
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