get-query.js

  function getQueryVariable(variable) {
    var query = window.location.search.substring(1);
    var vars = query.split('&');
    for (var i = 0; i < vars.length; i++) {
      var pair = vars[i].split('=');
      if (pair[0] == variable) {
        return pair[1];
      }
    }
    return (false);
  }