title: Make addition to href URL string
body: <p>I have the need to make changes to all hyperlinks on a page using Java Script. Currently the the tags are laid out in this maner</p>
  
  <pre><code>&lt;a href="/Level1/Level2/Level3/bla bla bla.aspx"
  </code></pre>
  
  <p>The change I am really struggling with (Being a absolute Noob in this field) is how i can make the following change and add in another level? Its subsite with the same structure;</p>
  
  <pre><code>&lt;a href="/Level1/Level2/Level3/+Level4/bla bla bla.aspx" 
  </code></pre>
  
  <p>Sections of the URL pre and post the addition of "level 4" will remain the same. I need this change to be applied to all Hyperlinks on the page that do not have the level 4 portion already present.</p>
  
  <p>Apologies for the shocking request. First time posting.</p>