getURLParameters

getURLParams

//Works fairly well

/* Get URL parameters */
function getUrlParam(key) {
  var params = [], pair;
  var pairs = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');

  if (key) {
    return decodeURIComponent((new RegExp('[?|&]' + key + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
  } else {
    //split the key/value pairs
    for(var i=0; i<pairs.length; i++){
      pair = pairs[i].split('=');
      params.push(pair[0]);
      params[pair[0]] = pair[1];
    }
    return params;
  }
}