ecabuk

### Add / Update a key-value pair in the URL query parameters ###
updateUrlParameter = (uri, key, value)->
  # Remove the hash part before operating on the uri
  i = uri.indexOf('#')
  hash = if i == -1 then '' else uri.substr(i)
  uri = if i == -1 then uri else uri.substr(0, i)

  re = new RegExp("([?&])" + key + "=.*?(&|$)", "i")
  separator = if uri.indexOf('?') != -1 then "&" else "?"
  if uri.match(re)