how to apply JavaScript replace() Method 2 time in a page
<p>JavaScript replace() Method</p>

<p>Hello <strong>username</strong>!Don’t forget me this weekend!<strong>Username</strong>.</p>

<p>When i use this</p>

<pre><code>str.replace("username", "Username");
</code></pre>

<p>but it's replace only first occurance i have to perform replace all.</p>
