function ready(fn) {
    if (document.attachEvent ? document.readyState === "complete" : document.readyState !== "loading"){
      fn();
    } else {
      document.addEventListener('DOMContentLoaded', fn);
    }
  }
  ready(function(){
    var ranges = document.querySelectorAll('[repeat]');
    for (const range in ranges) {
      if (ranges.hasOwnProperty(range)) {
        const element = ranges[range];
        element.addEventListener('change', function(event) {
          var repeater = document.getElementById(event.target.attributes.repeat.value);
          repeater.value = event.target.value;
        });
      }
    }
  });
/*
stapm_limit_w_range
ppt_fast_limit_w_range
ppt_slow_limit_w_range
temperature_limit_c_range
vrm_current_m_a_range
*/