title: How to format a decimal (floating point) number parameter in url
body: <p>Is there a specification about how decimal numbers have to be formatted, when transmitted as a parameter in an URL:</p>
  
  <p><code>e.g. http://example.org?value=1234.5</code> vs.
  <code>e.g. http://example.org?value=1234,5</code></p>
  
  <p>Or does this depend on the server implementation? This question arises cause of some countries using comma, some a dot.</p>
  
  <p>Update: I am not interested in how to urlencode the value, but how to format the decimal number.</p>