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];
        }
      }
      //alert('Query Variable ' + variable + ' not found');
    }