utm

$(function(){
  function getURLParameter(name) {
      return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
  }

  $.each(["utm_source","utm_medium","utm_campaign","utm_term",'source_type','source','position_type','position','added','creative','matchtype'],function(i,v){
      $('<input type="hidden" />').attr({
        name: "content["+v+"]",
        value: getURLParameter(v)
      }).appendTo("form")
  })
});