title: How to echo a sum of a Javascript function?
body: <p>So I've got this Example for you:</p>
  
  <p><a href="http://jsfiddle.net/mwpmk9kk/1/" rel="nofollow">http://jsfiddle.net/mwpmk9kk/1/</a></p>
  
  <p>As you can see, i summarize the Values of all checkboxes into one readonly input field.</p>
  
  <p>Now i want to echo the Value of all selected Checkboxes into an .php-Site after submitting it (method="post").</p>
  
  <p>I already tried it with <code>echo $_POST['price'];</code> but that did not work.</p>
  
  <p>Thank you in advance</p>