jQuery addClass example

Change class name on click in jQuery

HTML

<div id="banner-message">
  <p>Matematika</p>
  <input type="text" id="value1" class="input value1">
  <input type="text" id="value2" class="input value2">
  <input type="text" id="result" disabled="disabled" id="result">  
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

function RacunajZbir()
{

  var val1 = Number(+$(".value1").val());
  var val2 = Number(+$(".value2").val());
  var zbir = Number(val1+val2);
  
	$("#result").val(zbir);
  
}

function CenaSPopustom()
{
  
  var val1 = Number(+$(".value1").val());
  var val2 = Number(+$(".value2").val());
  var popust = Number((val2/100) * val1);
  var iznos = Number(val1-popust);
  
	$("#result").val(iznos);

}

$(document).ready(function()
{

	//RacunajZbir();
  //$(".input").keyup(function(){ RacunajZbir(); });
  //$(".value1").keyup(function(){ RacunajZbir(); });
  //$(".value2").keyup(function(){ RacunajZbir(); });
  
  CenaSPopustom();
  //$(".input").keyup(function(){ CenaSPopustom(); });
	$(".value1").keyup(function(){ CenaSPopustom(); });
  $(".value2").keyup(function(){ CenaSPopustom(); });
  
});