Parse URL values

parseURL.js

// JS for grabbing utm params
    var getRefQueryParam = function() {
    var temp = {};
    document.location.search.replace(/\??(?:([^=]+)=([^&]*)&?)/g, function() {
    var decode = function(s) {
    return decodeURIComponent(s.split("+").join(" "));
    };
    temp[decode(arguments[1])] = decode(arguments[2]);
    });
    return temp;
    };

    // Get all the UTM parameters before the page finishes rendering
    var utmParamQueryString = '',
      utmParamQueryStringTrimmed = '',
      utm_code = '';

    (function() {
      utm_code = getRefQueryParam("utm_code"); //Renders the value in url if it is present ie .com?utm_code=Charlie *renders 'Charlie'
     })();