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);
   var amount = (interest + principal)
  
   if(principal<=0){alert("Enter a positive Number")
  document.getElementById("principal").focus();}
  
  
      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>"+amount+"</mark>,\<br\>in the year <mark>"+year+"</mark>\<br\>"
      
  }
  
  function updateRate() 
  {
      var rateval = document.getElementById("rate").value;
      document.getElementById("rate_val").innerText=rateval;
  }
          
  