JavaScript split and add a string
<p>how to insert a string inside the url address after split ?
I have a simple code like this, but I just don't understand how split and join are work
I have tried "append" function but I can't get it right
I test and write it in
<a href="http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_split" rel="nofollow">http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_split</a></p>

<pre><code>&lt;html&gt;
&lt;body&gt;
    &lt;script type="text/javascript"&gt;

        var str="/image/picture.jpg";
        var test = str.split("/");
        for(var i = 0; i &lt; test.length; i++) {
             document.write(test[1].join('/original') + "&lt;br /&gt;");     
        }
        document.write(test);

    &lt;/script&gt;
&lt;/body&gt;
</code></pre>

<p>the output that I want is simply like this :</p>

<blockquote>
  <p>"/image/original/picture.jpg"</p>
</blockquote>

<p>note: thanks for the help.</p>
