Untitled

<!DOCTYPE html>
<html>
<head>


<meta charset="utf-8" />
<title>Prosty kalkulator</title>


</head>

<body>


<input type="text" id="pole1"/>
<input type="text" id="pole2"/>

<input type="submit" value="suma" onclick="suma()"/>
<input type="submit" value="odejmowanie" onclick="odejmowanie()"/>
<input type="submit" value="dodawanie" onclick="dodawanie()"/>
<input type="submit" value="mnożenie" onclick="mnozenie()"/>
<input type="submit" value="dzielenie" onclick="dzielenie()"/>

<p id="wynik"></p>

<script type="text/javascript">

var a = document.getElementById("pole1").value;
var b = document.getElementById("pole2").value;

function suma(){

	var a = document.getElementById("pole1").value;
	var b = document.getElementById("pole2").value;

	var w =  a + b;
	alert(w);
	document.getElementById("wynik").innerHTML = w;

}

function odejmowanie(){


}


</script>


</body>
</html>