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<div id ="CalculatorSalary">
 <h2>Freelance Balance Calculator </h2>

 <div id='about'>
   <button id="btnShowInstruction">Instructions</button>
   <span id='instructionText'>

 <div id=price> 
   <h5>price by hour</h5><input type='number' min='1'step='1'id='balancePerHour'/> 
    <h5> Total</h5>
<div id = 'total'>
  <span id='calculate-price'> </span> USD <span id='total'></span>
    <div id=button>

 <button id="startTimer">Start</button>
 <button  id ="pausetiming" >Pause</button><br><br>
  <span id="timeCounter" />  



 background-color:Tomato ;

  background-color:Gainsboro ;

  background-color:Gainsboro ;
  font-family: "courier";

#button{ padding:25px;
  background-color:Gainsboro ;

              var interval;
var totalSeconds;
var balancePerHour;

var hours;
var minutes;
var seconds;
var timeCounterLabel;

//initial script
function init()
  totalSeconds = 0;
  document.getElementById('calculate-price').innerHTML = "0.00";
    document.getElementById('startTimer').disabled = false;
    document.getElementById('pausetiming').disabled = true;
  document.getElementById("startTimer").addEventListener("click", startCounter);
  document.getElementById("pausetiming").addEventListener("click", stopCounter);
  document.getElementById("btnShowInstruction").addEventListener("click", showInstructions);
  timeCounterLabel = document.getElementById("timeCounter");
  timeCounterLabel.innerHTML = "00:00:00";

//start calculations
function startCounter()
  if (document.getElementById("balancePerHour").value <= 0)
      window.alert("Please add price per hour!");
    document.getElementById('startTimer').disabled = true;
    document.getElementById('pausetiming').disabled = false;
    balancePerHour = document.getElementById('balancePerHour').value; //You could move this line to calculateBalance
    interval = setInterval(count, 1000);
    //TODO: Maybe it would be a good idea to disable the price per hour input while the counter is running. You could do:
    document.getElementById('balancePerHour').disabled = true;

//stop calculations
function stopCounter() 
    document.getElementById('startTimer').disabled = false;
    document.getElementById('pausetiming').disabled = true;
    //document.getElementById('balancePerHour').disabled = false;

//update interval
function count ()

//calculate current freelance balance
function calculateBalance(secondsPassed)
  balance = (balancePerHour/(60*60))*secondsPassed;
  document.getElementById('calculate-price').innerHTML = balance.toFixed(2);

//show instructions
function showInstructions()
  document.getElementById('instructionText').innerHTML = "For anyone working as a freelancer, this project can be useful to calculate your pricing and time spent. Type your price by hour, then click on start to start counting. You can pause and resume timer.";

//calculate time passed since start working
function setTime() 
  timeCounterLabel.innerHTML = pad(parseInt(totalSeconds / (60*60))) + ":"
                              + pad(parseInt(totalSeconds / 60)) + ":"
                              + pad(totalSeconds % 60);

function pad(val)
  var valString = val + "";
  if (valString.length < 2)
    return "0" + valString;
    return valString;


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