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getParameterByName(name) ->
  name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]")
  regexS = "[\\?&]" + name + "=([^&#]*)"
  regex = new RegExp(regexS);
  results = regex.exec(window.location.search)
  if(results == null)
    ""
  else
    decodeURIComponent(results[1].replace(/\+/g, " "))