text: function compute()
  {
      var principal = document.getElementById("principal").value;
      var rate = document.getElementById("rate").value;
      var years = document.getElementById("years").value;
      var interest = principal * years * rate /100;
      var year = new Date().getFullYear()+parseInt(years);
      if (principal <= 0)
      {
          alert("Enter a positive number");
          return 0;
      }
      document.getElementById("result").innerHTML = "If you deposit: <mark>"+principal+"</mark><br>At an interest rate of :<mark>"+rate+"</mark><br>You will receive an amount of :<mark>"+interest+"</mark>,<br>In the year :<mark>"+year+"</mark><br>";
      
  }
  
  function updateRate(){
  
      var rateval = document.getElementById("rate").value;
      document.getElementById("rate_val").innerText = rateval;
  }
          
  