title: Adding up selected fields in drop down menus
body: <p>Very new to coding and have created the below:</p>
  
  <pre><code>&lt;option value="Select your magazine"&gt; Select your magazine&lt;/option&gt;
  &lt;option value="100 mag| 78.99"&gt; 100 mag | 78.99&lt;/option&gt;
  &lt;option value="250 mag | 136.99"&gt; 250 mag| 136.99&lt;/option&gt;
  &lt;option value="500 mag | 284.99"&gt; 500 mag  | 284.99&lt;/option&gt;
  </code></pre>
  
  <p>I wanted the person to select one option from this menu and another two options from the other menus similar to this. </p>
  
  <p>I want to be able to get a total down the bottom of the page.</p>
  
  <p>How do I go about doing this? </p>
  
  <p>Secondly, how do I get the paypal button to work once they have selected the multi options from the drop down menus?</p>
  
  <p>Lastly, how can I also add a coupon (discount) to their order with a secret word?</p>
  
  <p>I have searched high and low and I'm a tad confused. HELP Needed :-).</p>