var loc = top.location.href.toLowerCase();

function getPromo(url){
    var promoCode = "";
  var source = "";
  var medium = "";
  promoCode = getValue("promo=");
  source = getValue("utm_source=");
  if (source != null && source.toUpperCase() == "CJ") {
			medium = getValue("utm_medium=");
			if (medium != "") {
				promoCode = promoCode + "_" + medium;
			}
  }
  var urlwithpromo=url+"%26promo="+promoCode;
  return urlwithpromo;
}



function getValue(param) {
  var index = loc.indexOf(param);
  var retValue = "";
  if(index != -1){
   var str = loc.slice(index);
    var index1 = str.indexOf("&");
    if (index1 > 0) {
      retValue = str.substring(param.length,index1);
    } else {
      retValue = str.substring(param.length);
    }
  }
    return retValue;
}

//