text: function calcCost(){
    var myName = document.getElementById('name').value;
    var weight = document.getElementById('weight').value;
    var expressCost = 0;
    if (document.getElementById('express').checked){
      expressCost=5;
    }
    if(document.getElementById('r1').checked){
      document.getElementById('cost').innerHTML= (weight*2)+expressCost;
    }
    else if(document.getElementById('r2').checked){
      document.getElementById('cost').innerHTML= (weight*10)+expressCost;
    }
    else{
      document.getElementById('cost').innerHTML= (weight*5)+expressCost;
    }
  }
  