Replace word with jQuery
<p>I have word Hello on most of my pages and i want to change it to Welcome.
Is it possible and if yes how to replace the words with jQuery?</p>

<pre><code>Hello
&lt;p&gt;Hello user Jack&lt;/p&gt;
&lt;div&gt;Hell ow you from us
    &lt;h1&gt;12344 Hello&lt;/h1&gt;
    &lt;div&gt;Hellow&lt;/div&gt;
&lt;/div&gt;
&lt;script src="jquery-1.5.1.min.js" type="text/javascript"&gt;&lt;/script&gt;
</code></pre>
