Query parameters function

gistfile1.txt

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]);
              }
          }
          console.log('Query variable %s not found', variable);
      }
      
      
      
    
      var catt = parseInt(getQueryVariable('num'));
        var indexx = parseInt(getQueryVariable('num2'));